Take advantage of the Polymarket NASCAR promo code ACTION and unlock a $50 bonus offer on Sunday, July 24. Make a $20 deposit on Polymarket, and you get a $50 bonus for the Brickyard 400, one of the crown jewels on the NASCAR Cup Series schedule.
Enter the Polymarket promo code ACTION or click the sign-up module below to access this sign-up bonus. Trade on NASCAR in the following 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.
The latest Polymarket Brickyard 400 odds have Denny Hamlin as the favorite. Hamlin has been the driver to beat in 2026, but is still looking for his first victory at Indianapolis Motor Speedway. 2024 Brickyard 400 winner Kyle Larson and 2023 NASCAR Cup Series champion Ryan Blaney represent his biggest challengers.
Tune into today's race at 2 p.m. ET on TNT, and trade on prediction markets with the Polymarket NASCAR promo code ACTION.
Use Polymarket NASCAR Promo Code ACTION for Brickyard 400
Right now, you can use the Polymarket promo code ACTION and make a $20 deposit to access the $50 bonus funds. From there, you can trade on the Brickyard 400.
Denny Hamlin is the rightful favorite for the Brickyard 400 as he's been fast throughout the 2026 season. It's a great opportunity to use your $50 bonus and trade on Hamlin to win today's race.
Brickyard 400 Prediction: Denny Hamlin to Win (18%): Denny Hamlin enters Indianapolis in dominant 2026 form, leading the Cup Series standings with four victories and top-tier speed on flat-oval tracks. Combining his stellar current season with a proven history of front-running speed at Indianapolis, an 18% implied probability offers strong value for him to finally capture his first Brickyard 400 crown.
If Hamlin wins the Brickyard 400, you earn over $200 in profit with a $50 trade. If not, you lose your $50 bonus but still have a $20 deposit to trade on other prediction markets.
Don't miss out on a $50 bonus from one of the best prediction market apps. Use the Polymarket NASCAR promo code ACTION and trade on the Brickyard 400 today.
How to Sign Up for Polymarket on Sunday, July 26
- 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 $20: Make a qualifying first-time deposit of $20 or more to unlock the $50 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.
Must be 18 years or older and have a legal, U.S. residential address within the applicable state, D.C., or U.S. territories. Not available in AZ, IL, MA, MD, MI, MT, NV, and OH.
