Best Chess Prediction Markets for the Saint Louis Rapid & Blitz on August 3rd
The fourth tournament of the 2026 Grand Chess Tour is around the corner, and chess prediction markets are ready. These platforms are giving chess fans a way to trade on this tournament’s outcome as the players battle in Saint Louis.
Traders are highly anticipating this tournament as the Rapid & Blitz formats demand speed, accuracy, and composure under pressure. At top prediction markets like Kalshi, Polymarket, and Crypto.com, traders can predict winners, player performance, and leaderboard changes. In this article, we cover these platforms, breaking down their features, contract style, and more. Also, we’ll discuss the accompanying welcome bonus offers.
A snapshot of the Saint Louis Rapid & Blitz event
The main Saint Louis Rapid & Blitz tournament event will run from August 2nd to 6th, 2026 at the Chess Club in St. Louis, Missouri. However, our focus is on August 3rd, the second day of the fourth tournament round of the 2026 Grand Chess Tour. For this round, 10 players (seven tour regulars and three wild cards) will compete. The format is a rapid single round-robin followed by a Blitz double round-robin, which you can now trade on the best prediction markets.
Best prediction markets for the Saint Louis Rapid & Blitz
Many sports prediction markets now offer chess contracts. This makes it easier for users to trade the Rapid & Blitz event without needing a sportsbook. With that in mind, we’ve put together a list of the best platforms offering simple contracts and bonuses. Let’s discuss them below.
Polymarket
- Numerous markets on sports, crypto, the economy, and politics
- Regulated by the CFTC
- Multiple rewards for existing traders
- Crypto payments only
Polymarket is one of the highest-volume prediction markets that allows you to trade sports events like chess on blockchain-based contracts. It offers one of the lowest fee structures in the industry.
In our Polymarket review, we discovered that US users can only access this platform using the mobile app. This app has an intuitive user interface, and it’s available on both Android and iOS devices. As a new Polymarket user, you can get a $20 trading bonus after you register. Simply sign up with the promo code “PREDICTSAIL” and deposit at least $10 to get the bonus.
Kalshi
- Broad range of markets
- 24/7 live chat support
- Huge reputation
- Native mobile app
- Transaction fees
Kalshi is a very popular CFTC-regulated, US-based prediction market. Users can trade Yes/No contracts on real-world events like economics, politics, culture, and of course, sports. New users who register on Kalshi can unlock up to $500 in bonus trades. To qualify, deposit and trade up to $25 within seven days after registering.
During our Kalshi review, we found that you can sell your shares early during live sporting events. This lets you reduce liability or make more profits. For events like the Saint Louis Rapid & Blitz, Kalshi usually lists contracts tied to tournament outcomes or match winners.
Crypto.com
- Welcome bonus
- Broad range of markets
- High-performance mobile app
- Strict ID verification
From the name, you can already deduce that this is a prediction market that blends fixed-odds-style pricing with crypto. Like Polymarket, this platform is best for traders who prefer using cryptocurrency to fund their account, although it also supports fiat currencies. However, unlike Polymarket, you don’t need to use any Crypto.com promo code to claim the welcome bonus.
As a new user, you get a 100% match bonus up to $250 when you fund your account with at least $125. Keep in mind, though, that according to prediction market news, regulators restrict this platform in several US regions.
Last words: Trade Saint Louis Rapid & Blitz contracts on these platforms
The Rapid & Blitz is one of the most exciting tournaments of the Grand Chess Tour and many traders have started predicting the outcome. You can also be part of them when you sign up on either Polymarket, Kalshi, or Crypto.com, but be sure of your state’s eligibility before registering. Once you’ve confirmed, click the link on this page to create an account and start trading on chess contracts.