Best Prediction Market Promos Compared (August 2026)

Kalshi's welcome offer ranks as our top prediction market bonus. New users who enter our exclusive Kalshi promo code SI35 can now claim the largest available welcome offer for Kalshi prediction markets: a 'Trade $25, Get $35' offer. With MLB in full swing and the NFL preseason underway, now is a great time to unlock the offer.

Among today's prediction market apps, Kalshi's welcome offer stands out for its simplicity. Just settle $25 worth of trades, and you'll have an extra $35 in bonus credits to use with the best operator in the space, just in time for the NFL regular season.

Leading prediction markets are rolling out competitive promos for new users. We've consolidated all the important bonus terms and promo codes related to event contract trading into a single table below.

🥇 Kalshi: Kalshi has the biggest welcome offer available through our exclusive promotion, making it our top prediction market promo for U.S. traders. Apply the Kalshi promo code SI35, make $25 worth of qualifying trades, and you'll receive a $35 bonus to use on our top-rated prediction market platform.

🥈 Polymarket: The Polymarket promo is ideal for users who want a straightforward, fixed reward offer. Enter promo code SIBONUS to unlock a $20 bonus after depositing $10, making it one of the easiest offers for new traders to claim. It's helpful to start your venture at Polymarket.

🥉 ProphetX: The ProphetX promo stands out for sports-focused traders. New users can trade $10 and get $20 in bonus credits with promo code SICOM, plus access to exchange-style pricing, live trading, and 0% fees on winning parlays.

My reviews of the best prediction market promos cover exactly what you need to know about each bonus. I'll go through the terms, explain how to claim each bonus offer, provide exclusive promo codes, and highlight the pros and cons of each platform's offer so you can decide which prediction market bonus to claim first.

Here are my rankings of the top prediction market welcome offers to claim in 2026:

1. Kalshi promo - Best prediction market promo for mobile trading
2. Polymarket promo - Best prediction market promo for versatile traders
3. ProphetX promo - Best prediction market promo for parlays
4. Novig promo - Best promo for trading rewards
5. OG.com promo - Best prediction market promo for social rewards
6. Crypto.com promo - Best prediction market promo for referrals
7. DraftKings Predictions promo - Best predictions market promo for sports trading

Kalshi makes it easy to unlock an exclusive 'Trade $25, Get $35' in bonuses welcome offer with Kalshi promo code SI35. Simply register with code SI35 and complete $25 in qualifying trades to unlock $35 in bonus funds for eligible sports and prediction markets.

My take on the Kalshi promo? The standout for me is the value you get for a relatively small trading requirement. You only need to complete $25 in qualifying trades to earn $35 in bonuses, meaning the reward is actually larger than the amount you need to trade. More importantly, you won't find a bigger Kalshi new-user offer elsewhere in total value, making SI35 the preferred Kalshi promo code for new users.

Kalshi features deep USD banking options, deep liquidity, a broad selection of sports and real-world markets, and one of the most intuitive trading platforms we've tested.

Use promo code SI35 to check out the platform and decide for yourself whether the Kalshi bonus fits the bill as our top promo for mobile event trading. Then use the Kalshi referral code to get started and earn $25 per referral, up to $1,000 total.

Kalshi welcome promo top features

• Low up-front investment — Deposit at least $10 and settle $25 in qualifying trades to earn a $35 bonus.
• Guaranteed value — Every eligible new user who completes the promotion requirements receives the same $35 bonus.
• Great for newbies — Bonus funds give you additional money to try out a top-rated mobile prediction market platform.

Kalshi shines with its highly rated mobile prediction app (4.8/5 on the App Store) and real-world trending events, including political event contracts like "2028 Democratic presidential nominee?" and financial market questions such as "When will Anthropic officially announce an IPO?"

Even with a massive variety of real-world offerings, Kalshi still excels in sports outcomes, making it one of our top prediction market apps to target for NFL futures trading, including the Super Bowl winner and much more.

Want to learn more? Read our comprehensive Kalshi review to get the full breakdown.

*Certain limitations apply. The offer is available to new users only. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See http://kalshi.com/regulatory for more information.

Using the Polymarket promo code SIBONUS at sign-up will allow you to secure one of the easiest-to-claim welcome offers for new event contract traders among our top trading apps: a $20 trading bonus unlocked by a deposit of just $10 or more on the Polymarket mobile app. 

The simplicity of this $20 bonus on Polymarket is what makes it a standout prediction market promo in our view. The fixed bonus amount and low deposit terms mean all types of traders can benefit, including versatile traders who value variety and want to test new markets with their welcome bonus. That's really where the Polymarket promo shines: in reliability. The platform has the deepest real-world offerings for event contract outcomes in the industry, meaning you know the exact amount of bonus funds you'll be awarded to trade sports in niche markets like the UFC and PGA Golf, or make your trades on elections (U.S. and other countries), economics, and awards.

Just complete your registration with promo code SIBONUS and make your first deposit of $10+. Then you'll be free to choose from one of the world's largest selections of event trading outcomes among prediction market platforms.

Polymarket welcome promo top features 

• Simple to claim — unlocks with just a $10+ deposit
• High flexibility — use it to trade on anything (sports, politics, and crypto)
• No strings attached — fixed bonus amount and easy to clear with a 1x wagering requirement

Once on Polymarket, you can access long-term prediction contracts on major sporting events, such as Super Bowl LXI futures. You can also trade on politics and other real-world outcomes, including 'The 5-minute price interval of Bitcoin?' and cultural markets such as 'Next James Bond actor?'

Polymarket also has a solid selection of event contracts offered in niche sports markets, including Formula 1, Rugby, and Boxing. 

For more information, check out our Polymarket review, which goes into more depth.

18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See http://polymarket.com/tos  for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated exchange and clearing organization.

New ProphetX users can claim a guaranteed $20 in bonus trading credits by signing up with promo code SICOM and completing a qualifying trade of $10 or more. Unlike variable welcome offers, every eligible customer receives the same fixed $20 bonus, making it one of the easiest and most straightforward prediction market promotions to unlock. With just a $10 qualifying trade required to unlock the offer, it's an excellent low-risk way to try one of the newest federally regulated sports prediction market platforms.

ProphetX stands out by combining peer-to-peer sports trading, American-style sportsbook odds, and the ability to set your own prices with limit orders instead of accepting bookmaker lines. You can trade NFL futures, NFL preseason markets, NBA, MLB, NHL, soccer, golf, UFC, and more using either instant market orders or your own target prices.

Another standout feature is 0% site fees on net gains from parlays, making ProphetX one of the few prediction market apps where you can build higher-upside multi-leg positions without paying platform fees on winning parlays. Combined with its welcome bonus and customizable pricing, it's one of the best options for sports-focused traders looking for an alternative to traditional sportsbooks.

For a full rundown of where else you can build multi-leg positions without giving up value to fees, check our list of the best prediction market parlay sites.

ProphetX welcome promo top features

• Low up front commitment — $10 deposit and initial trade gets you $20 bonus
• Can set own price in order book — limit orders allow for personalized pricing
• Sportsbook-style odds — easy to navigate for anyone new to trading

ProphetX specializes in sports event contract trading, and it shows with the detail they've put into their order book. Users can see available liquidity and the prices at which they can trade, and set their own prices through limit orders.

ProphetX also currently offers a wide range of regular-season game markets and futures, including Super Bowl LXI futures, making it a perfect time to try out the ProphetX promo code and get started.

All new users on Novig who sign up with our exclusive Novig promo code SIBONUS will receive a 'Deposit $10 Get $25' welcome offer that gives you a simple way to try out one of the newest sports prediction market platforms. Now that Novig has received CFTC approval as a Designated Contract Market (DCM), users in all 49 eligible states (outside NV) can claim the bonus.

From an operator standpoint, what sets Novig apart is its peer-to-peer trading model. Instead of betting against a traditional sportsbook, users trade sports contracts against other participants on the Novig exchange. The platform focuses exclusively on sports, with markets covering the NFL, NBA, MLB, NHL, college sports, golf, tennis, soccer, UFC, and more. Users can accept an available price or use limit orders to post their own price and wait for another trader to match it.

Novig also offers standout features such as same-game parlays and multi-leg combos, with a native combo builder that supports two- to 12-leg parlays. These options give sports traders additional ways to build high-upside positions across available markets.

Novig is available in eligible U.S. jurisdictions and offers dedicated iOS and Android apps. Its mobile platform provides real-time pricing, quick trade execution, and tools for managing open sports positions throughout the day.

Why we like the Novig welcome offer

• Deposit $10, get $25 with Novig promo code SIBONUS.
• Peer-to-peer sports prediction market with users trading against other participants rather than a traditional sportsbook.
• Sports-focused platform covering the NFL, MLB, NBA, NHL, soccer, golf, tennis, UFC, college sports, and more.
• Available in eligible U.S. jurisdictions with native iOS and Android apps.
• Supports same-game parlays and multi-leg combo trading on eligible markets, providing more ways to trade sports contracts.

The OG welcome offer is a $10 new-user reward that can be claimed by eligible traders who complete one qualifying trade of $10 or more. To unlock the bonus, new users can tap on the OG links on this page, then verify their account, confirm eligibility for the promotion, and place a qualifying $10+ trade within 7 days of KYC approval.

I found the OG welcome offer easy to understand because the requirement is straightforward: make one eligible trade, wait for it to settle, and receive the bonus if all terms are met. It was an easy win and a great way to try out one of the newest prediction market apps, which impressed with high-end graphics and easy-to-read trading slips that matched or even exceeded those of its top competitors.

The main details of the OG promo code to watch are:

• Your initial trade must be worth $10 or more to qualify for the OG bonus
• The trade must also have a probability below 80% to qualify
• Reward-funded trades do not count toward the offer
• The promotion expires 7 days after account verification

OG.com welcome promo top features

• Simple bonus requirement — Trade and settle at least $10 in one qualifying trade to earn a $10 reward.
• Sports-focused markets — OG.com gives users access to game and player markets across leagues such as the NBA, NFL and MLB.
• Social rewards — signing up will allow access to OG leaderboards and rewards

In addition to its industry-leading sign-up bonus, OG has an updated combo builder that now allows for same-game parlay-style trades on sports with up to eight legs. They also offer event trading on a wide range of trending real-world and political events, including markets for 'US Presidential Election Winner 2028.'

Find out about more about the features this platform offers sports traders by claiming the OG promo code today.

• Campaign Period: Extended
• The promotion expires 7 days after account verification. Only events settled within this 7-day window are eligible.
• Each qualifying trade must be worth at least $10.
• Only trades with probabilities below 80% qualify.
• Trades at or above 80% probability will not be counted.
• Trades are only counted once they have settled.
• Trades placed using rewards will not be counted.

With the Crypto.com referral code, you can earn a $50 bonus in CRO (Cronos), the site's native cryptocurrency, just for signing up through one of our links. Plus, you can earn up to $2,000 USD in CRO and 50% of your friend's trading fees, for a limited period, when your friend signs up using your unique referral link. 

How much you can earn with the Crypto.com referral code depends entirely on how much CRO your friend stakes.  

Claim up to a $50 bonus today, and get access to Crypto.com's referral bonus and a prediction market platform that will allow you to trade on sports, crypto, and more.

Crypto.com referral code top features 

• Higher value offer — referral offer allows for larger, long-term earnings
• Scaling opportunity — earn more through frequent referral stakes or trades
• Crypto-focused — rewards provided in native CRO, which can be used for staking or trading on the exchange

Crypto.com is the premier landing spot for real-world event traders who want to trade sports and cryptocurrency on their phones (over 400+ cryptocurrencies supported). Its mobile prediction platform has easy-to-read event contracts, with implied probabilities for each game clearly displayed on the app.

DraftKings Predictions offers the largest fixed bonus award for new prediction market users. The bonus awards $150 in Predictions Dollars after you complete a trade of $5 or more, so there are no large barriers you'll need to clear to unlock the bonus.

Rather than requiring a large deposit, with the DraftKings Predictions promo code, you simply make a qualifying first deposit and complete a trade of $5 or more. You'll then receive $50 in Predictions Dollars after your first trade settles, followed by another $100, distributed as $50 every 7 days, over the next 14 days. This gives you plenty of opportunities to continue trading on markets across the NFL, NBA, MLB, NHL, golf, UFC, the World Cup, and more.

DraftKings users will appreciate the fact that DraftKings Predictions operates on a familiar-looking platform and is backed by a proven industry leader in sports betting. While DraftKings' liquidity and offerings don't yet rival those of the largest prediction market operators (yet), they do feature options like combo trading with bet slips that update your potential payouts as you add legs.

Qualifying requirements for the DraftKings Predictions welcome bonus:

DraftKings Predictions welcome promo top features

• Larger welcome bonus — Get $150 in Predictions Dollars with a first trade of just $5.
• Easy transition for sports bettors — Uses American-style odds and a familiar, trusted platform.
• Excellent mobile app and user experience — backed by the DraftKings ecosystem.

DraftKings Predictions benefits from its sports pedigree, with years of experience in building a popular North American sportsbook. This expertise is evident in the interface, where users can access all of DraftKings products, including Predictions, via the DraftKings Super App. If you're already familiar with DraftKings Sportsbook, switching to DraftKings Predictions will be seamless.

While the platform offers markets on politics, economics, and real-world events, sports remain a key focus, with contracts available year-round across major leagues and tournaments.

Event Contract Trading is offered by DraftKings Predictions, a CFTC-registered Introducing Broker and NFA member. Trading involves substantial risk of loss and is not suitable for everyone. Market availability varies. Eligibility restrictions apply. 1 per new DraftKings customer. $5+ first-time trade req. Max. $150 issued as Predictions Dollars, which are site credits that are non-withdrawable, single-use, and expire in 1 year. Reward issued as $50 in Predictions Dollars every 7 days via click-to-claim for 14 days. 7 days = 168hrs. Terms: http://dkng.co/predictionspromo. Ends 8/23/26 at 11:59 PM ET.

Prediction market promos are essentially welcome offers that leading prediction market platforms award to new users. These promos typically come in the form of bonus money or site credit and are awarded after you complete registration or make your first trade or deposit. While the bonus funds themselves typically can't be withdrawn, any profits you earn from a trade using your bonus will be paid out in cash to your account.

Most prediction market promos also come with simple terms and can be unlocked quickly. This differentiates them from the welcome bonuses offered by larger sportsbooks that try to impress with big totals but are often tied to difficult terms or confusing conditions. 

Here are the most common forms of prediction market promos for event trading right now. 

🎁 Deposit bonuses

Deposit bonuses have a simple promo structure: you deposit a certain amount, and the site then awards you bonus credits you can use to trade. 

↔️ Trade and get

A trade-and-get offer requires users to make a deposit and complete their first trade to unlock a bonus. While these offers do require an extra step, the rewards are often larger than those of simple deposit matches. Kalshi has a very simple trade-and-get offer, where users get a bonus of $20 after completing $20 worth of trades.

🪜 Laddered promos

Laddered promos are promos whose value increases as you complete certain steps or milestones. With a laddered welcome promo, a site increases the value of your offer as you complete specific tasks or stages. 

🎉 Contests

For big events such as the Super Bowl or World Series, sites like Polymarket and Kalshi often reward new and existing users with large-scale contests offering chances at big prizes. 

Looking for more prediction platforms and promo offers? The ROLR prediction market promo code is one you'll want to check out soon, as this new prediction site now has a waitlist open for new users, so keep that in mind.

Claiming a prediction market promo is a great starting point for anyone who wants to trade on sports outcomes, such as the World Series, or real-world events, including elections and politics. They're often easy to claim and will offer a helping hand on your first trade or two as you try out apps like Kalshi or apps like Robinhood and other platforms.

Most traders who benefit from prediction promos are new users trying prediction trading for the first time or comparing new sites. However, other specific traders can benefit from prediction market promos as well, including:

• Traditional sports bettors who want to speculate on real-world events such as politics, entertainment, or finance. 
• Sports bettors who want to benefit from the no vig/low fee model of prediction markets.
• Event contract traders who want access to site-specific markets, such as politics or geopolitical event trading (war, diplomacy, etc) on Polymarket.
• Traders wanting an alternate platform for hedge trading purposes, or for trading crypto assets specifically.
• Anyone who wants to speculate on sports such as MLB or the NFL and lives in a state where sports betting is banned or limited, such as Texas, Florida, Georgia, or California.

Most people will find welcome offers and bonuses on prediction platforms and apps like Polymarket useful. However, there are those who may not find prediction promos to be much help. 

Since prediction market promos tend to be lower-valued, low-commitment bonuses, anyone seeking to unlock a larger sportsbook-style bonus in their startup may need to reconsider options. Prediction market bonuses won't provide you with a large boost in bankroll right away, and for some traders, they will hardly register at all. 

Others who not benefit from prediction market promos include:

• Those seeking regular profit boosts for trading. Prediction sites offer little for existing users in this area compared to a sportsbook.
• Anyone who prefers sportbook-style odds to the implied probabilities used in prediction markets.
• Sports bettors who would prefer not to learn about trading and would rather stick with simple sportsbook dynamics, including bookmaker-created odds.
• Bettors who only want access to specific sports and game props and aren't typically interested in speculating on areas outside of sports.

Promotions for prediction markets from leading platforms and apps like PredictIt are generally considered safe and legitimate. Our top-rated prediction platforms, such as Kalshi or Polymarket, are all regulated by federal agencies, including the CFTC, and are designated contract markets.

However, it is important to note that prediction markets do function differently from sportsbooks. Instead of wagers that use odds set by a bookmaker, prediction sites offer financial derivatives in the form of binary contracts that trade event shares priced from $0 to $1 and act as "all-or-nothing" contracts.

This payout system means that if you are wrong, you lose the entire value of your trade, making prediction trading very similar to sports betting in many regards, and (overall) riskier than traditional stock investing.

How to tell if a prediction market promo is legit?

Legit prediction market promos (such as those from Polymarket or Kalshi) are usually structured as deposit matches, trade-and-get, laddered rewards, or profit boosts for regulated event contracts. These sorts of promos are often easily verified by checking the site's CFTC registration.

The best prediction market promos are legal welcome offers offered by a prediction market platform that is a federally regulated trading site under the Commodity Futures Trading Commission (CFTC).

All of our featured prediction market platforms are legitimate operators, federally regulated to operate in the US, and legal in up to 50 states (although some small state-by-state restrictions may apply). This means that residents of California, Texas, and Florida, where sports betting is not currently legal, can use prediction markets and claim our featured prediction market promos.

Most promos from legitimate prediction market sites are easy to claim and come with clear terms. However, always ensure you review the conditions before claiming.

Prediction market promos state guides

Most prediction markets and apps like PrizePicks are available across the United States, outside of Nevada and other select locations. However, for those users in states where sportsbooks aren't legal or regulated, you'll still able to access several prediction markets platforms and their welcome offers.

To help, we've provided state guides for users in the largest states:

• Kalshi California
• Kalshi Florida
• Kalshi New York
• Kalshi Texas

1. Create and verify your account

Use our reviews to select the best prediction market promo for your style of event trading. Follow the links on this page to sign up on the platform. Complete identity verification (KYC) and secure your account by providing the necessary details, such as name, date of birth, and SSN, to verify your identity and location.

2. Claim the Promo

Enter your SI-verified prediction market promo code at registration. Some offers may not require a promo code and can be activated simply by tapping any of the verified links on this page. Read the terms carefully (minimum deposit, wagering requirements, withdrawal restrictions) so you'll be ready to clear the exact steps needed to unlock the full value of your promo.

3. Fund your account

Deposit at least the minimum required amount using your preferred payment method (bank, card, crypto, etc.). Most deposits will be processed instantly, but check transaction times to avoid disappointment. Once finished, if you're claiming a deposit match bonus, confirm your bonus credits have been applied.

4. Place your first trade

Browse the available event contract markets on your site. Select from a variety of options, including sports, real-world events, and currency forecasting. When ready, select a prediction position 'Yes' or 'No', set your trade size, and confirm the order. 

5. Withdraw your winnings

Once the market settles and all promo conditions are met, navigate to the withdrawal page, choose your payout method, and cash out your funds. Be sure to check withdrawal policies and speed before beginning the payout process. 

The best prediction market promos differ from top sportsbook promos in several important ways, with terms and bonus allocation being key differences.

Here are the main differences to think about when considering prediction markets vs. sportsbooks and claiming a prediction market app welcome promo vs. a traditional sportsbook promo.

Note: We're in the process of acquiring an Underdog promo code.

Prediction traders can also check out our new DraftKings Predictions promo code page for info about the newest DraftKings product and its welcome offer.

Prediction market promos expose you to speculating with higher-risk binary contracts on platforms with markets on almost everything. While the promo offers themselves are a nice starting bonus its still prudent to be mindful when claiming these offers and using prediction market sites. 

Here's my list of tips that will help you use an event contract promo responsibly from the get-go:

📜 Review the terms and conditions

Although prediction market promos are easier to claim and often have clearer terms than sportsbook bonuses, these bonuses can still include fine print that requires you to follow certain procedures closely. Do your own due diligence before you sign up.  

🏦 Only deposit what you're comfortable with

Prediction markets aren't the same as investing. They may present themselves differently from sportsbooks, but binary trading is very similar to placing a sports bet, as you can lose your entire investment on any single trade. Don’t overlook the fact that trading predictions on real-world events carries a lot of risk.

📊 Understand implied probabilities and how trading works

Since they’re not sportsbooks, prediction platforms generally display current prices as percentages that represent the implied probability of an event occurring. Make sure you understand what these percentages represent so you can better interpret price action and historical data, and make smarter trades.

👉👈 Understand the concept of peer-to-peer trading

Unlike sportsbooks, prices on prediction platforms aren’t controlled by bookmakers employed by the site. Instead, price action is driven by the collective buying and selling activity of market participants (traders). Make sure you understand how supply and demand affect the price of an outcome before investing.

💡 Develop a trading plan based on your knowledge base

Keep your world small as you start out. While it will be tempting to invest in the most trending topics, trading in areas you're familiar with will likely lead to better results, at least initially. Avoid FOMO'ing into trades at all costs.