Best Prediction Market Promos for the MLB on 07-21-2026
Pro baseball returns this Tuesday with several MLB fixtures on July 21st. Better yet, prediction market promos by Crypto.com, Kalshi, and Polymarket plunge you right into the action with a combined $310 welcome bonus to trade various markets.
All you have to do is follow the steps prescribed for each offer to claim it. Not to worry, we’ve got it all covered here for you. From what each offer is about, to what you need to do, and the smart trading decisions you can make. Read on to the end for the full disclosure.
The best MLB prediction market promos for July 21st
The MLB schedule for July 21st features some marquee matchups, including the Dodgers @ Phillies and the Rays @ Blue Jays. What you get on these prediction market platforms is the full package of unique trading opportunities and free trading credits to let you act on new information that comes up.
Each operator provides in-depth coverage of available sports prediction markets for each game. What it simply means is that there’s a host of options to explore on every game, no matter the platform you pick and the bonus you claim.
Kalshi – deposit and trade $10, get $10 trading credits
- Broad range of markets
- 24/7 live chat support
- Huge reputation
- Native mobile app
- Transaction fees
Kalshi is one of the more easily recognizable prediction market brands. As explored in our Kalshi review, this is a CFTC-regulated platform with an easy-to-use trading interface and a wide range of MLB-related event contracts.
Kalshi has event contracts spanning game totals, moneylines, and player-focused markets. Deposit $10 into your account, trade it, and claim $10 in free trading credits to start exploring these markets. The best bit is that prices are dynamic, allowing you to adjust your trading strategy as games play on.
Polymarket – deposit $20, get $50 trading credits
- Numerous markets on sports, crypto, the economy, and politics
- Regulated by the CFTC
- Multiple rewards for existing traders
- No welcome bonus
Next up is Polymarket. Unlike Kalshi, this is accessible from even more global locations. That means more market participants and trading volume reacting to prediction market news affecting various event contracts.
Reading our Polymarket review will tell you more about how the platform works, including its dedicated use of USDC. Beyond that, it walks you through the sign up process and helps you unlock $50 in trading credits after you deposit $20. MLB markets you can explore with the bonus include moneylines, spreads, extra innings, and so forth.
Crypto.com – get up 100% deposit match up to $250
- Welcome bonus
- Broad range of markets
- High-performance mobile app
- Strict ID verification
Wrapping up our list of prediction market promos is Crypto.com. The platform is one of the mainstays of crypto asset exchange. It later evolved to offer event contracts covering culture, sports, politics, and more.
As a new trader looking forward to the July 21 fixtures, you can get a 100% deposit match up to $250 without a Crypto.com promo code or following a complicated process. Head on to the site, set up your account, fund it, get your bonus, explore the MLB contracts you like, and trade.
Make your MLB picks for July 21
Tuesday, July 21, MLB serves up 15 different ties with the Dodgers v the Phillies on the schedule. Prediction market promos from three top platforms, Crypto.com, Kalshi, and Polymarket, give new traders a combined $310 in welcome bonuses. The promos allow you to trade various event contracts listed on these prediction market sites, including moneylines, player props, extra innings, spreads, and more. Use our banners and promo code to get you started with the exclusive bonuses and make your picks on the slate-full July 21st.