July 26, 2026
by Emma Harrison
The DC Open first round takes place on July 27, and if you’re looking for the best prediction market promos for the event on Monday and other tennis markets, we’ve got you covered with some good options.
The Mubadala DC Open has several first-round matches lined up, with Jessica Pegula and Alex de Minaur as top seeds. If you’d like to make your predictions, Kalshi, Polymarket, and Crypto.com have generous promos for new traders. Join us as we spotlight these platforms, and how you can get up to $645 in prediction market bonuses.
The official draw for the DC Open first round is yet to be confirmed. So you may not find specific sports prediction markets for every July 27 match right now, but they could still be added as it gets close to matchday.
To be better prepared to trade when markets open, there’s $645 in prediction market promos you may want to score in time. Kalshi, Polymarket, and Crypto.com have prediction market promos that top the charts.
Kalshi: Pros & Cons - Broad range of markets
- 24/7 live chat support
- Huge reputation
- Native mobile app
Kalshi is easily one of the top prediction market platforms for promos, with a welcome bonus of up to $500 in trading credits after placing $25 in trades. There are so many events you can trade on, including politics, crypto, climate, and sports markets like tennis. You may find our Kalshi review interesting if you want to know more about this platform.
Polymarket: Pros and Cons - Numerous markets on sports, crypto, the economy, and politics
- Regulated by the CFTC
- Multiple rewards for existing traders
Our Polymarket review has all the details about this prediction market giant, and there’s a lot to like. For starters, new traders just have to deposit $20 to receive a welcome bonus of $20 in trading credits. There are thousands of markets to use your bonus on, including sports prediction markets. DC Open markets haven’t been added just yet, but with the first round getting close, we expect them to open up.
Crypto.com: Pros and Cons - Welcome bonus
- Broad range of markets
- High-performance mobile app
Crypto.com is well-known as a crypto trading platform, but did you know it also offers extensive markets for sports, including tennis? What’s even better is the generous 100% deposit match bonus up to $125 for newly registered traders. You don’t need a Crypto.com promo code to access this bonus, as you can easily claim it by visiting the brand using the corresponding banners around this page.
Fans of the sport can’t wait for the DC Open first round on Monday, July 27, and if you’re interested in trading on tennis outcomes, you can check the top prediction market platforms we’ve recommended.
DC Open markets may not be available just yet, but they should pop up as soon as the official draw is decided. But you don’t have to wait, not when you can grab up to $645 in prediction market promos early on.
It’s very easy to access these bonuses. Simply click the corresponding banners on this page to visit Kalshi, Polymarket, or Crypto.com, get registered, claim the available prediction market promos, and check the tennis markets before matchday.