Sign up today using the Polymarket promo code ACTION and unlock a $20 welcome bonus on Wednesday, July 29. Use the best MLB prediction market app and make a $10 deposit to access the $20 sign-up offer. From there, you can trade on a full slate of MLB games today.
Make sure you enter the Polymarket promo code ACTION or click the sign-up module below to access your welcome offer in these states: AK, AL, AR, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IN, KS, KY, LA, ME, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, and WY.
Today's MLB slate began at 12:10 p.m. ET and continues through 10:10 p.m. ET. The marquee matchup on July 29 is Yankees vs. White Sox at 7:40 p.m. ET on Prime Video. The Yankees are trying to catch the Rays in the AL East, while the White Sox hold a slim lead over the Guardians in the AL Central.
Don't miss your chance to use one of the best prediction market promos today. Enter the Polymarket referral code ACTION and make a $10 deposit to unlock the $20 bonus offer.
Use Polymarket Promo Code ACTION on Yankees vs. White Sox Today
Right now, you can use the Polymarket promo code ACTION and make a $10 deposit to access the $20 sign-up bonus. From there, you can trade on Yankees vs. White Sox prediction markets, as both teams look to stay in the playoff race.
The latest Polymarket odds have the Yankees at 55% chance to win tonight's matchup. I like the Yankees in this game because of starting pitcher Cam Schlittler. Schlittler is the AL Cy Young favorite, sporting a 2.07 ERA and 0.93 WHIP, both ranking top 3 in the majors.
Yankees vs. White Sox Prediction: Yankees ML (55%): Cam Schlittler has been outstanding for New York in 2026, pitching to a 2.07 ERA and 0.93 WHIP with 157 strikeouts across 130.1 innings. Coming off a dominant 7.1-scoreless-inning, 12-strikeout masterpiece against Philadelphia, his elite swing-and-miss stuff gives the Yankees a decisive advantage on the mound against Chicago.
Let's say you use your $20 bonus on this market. If the Yankees win, you earn a $15.40 profit, while a loss leaves you without your $20 stake. Make sure you view the latest MLB odds before trading on tonight's game.
Take advantage of the best MLB prediction market app and unlock a $20 bonus with the Polymarket referral code ACTION. Trade on Yankees vs. White Sox or any game today.
How to Sign Up for Polymarket on Wednesday, July 29
- Download the app: Install Polymarket on your iPhone or Android device through the official mobile app store.
- Select “I Have a Referral Code”: During registration, enter the Polymarket referral code ACTION to activate the promo.
- Create your account: Register using your Apple or Google credentials.
- Verify your identity: Complete the age and identity verification process by submitting your phone number and personal details.
- Deposit at least $10: Make a qualifying first-time deposit of $10 or more to unlock the $20 bonus credits.
- Start trading: Once funded, you can use your balance on any available market on the platform. Before placing a trade, use an odds converter to compare implied probabilities and identify potential value.
18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See http://polymarket.us/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 derivatives exchange and clearing organization. Not available in AZ, IL, MA, MD, MI, MT, NV, and OH.
