Sign up for an account using the Polymarket promo code ACTION from Action Network, complete a deposit of at least $10, and collect a $20 trading bonus today, Monday, Aug. 17, 2026. Register now in order to have time to fund your account between the Cardinals vs. Reds makeup game at 1:40 p.m. ET from Great American Ball Park in Cincinnati, Ohio.
Polymarket Promo Code ACTION Offer Terms
| Detail | Terms |
|---|---|
| Polymarket promo code | ACTION |
| Offer | Deposit $10, get $20 trading bonus |
| Minimum deposit | $10 |
| Eligibility | New Polymarket users, 18+ |
| 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, WY |
| Bonus type | Trading credits, not withdrawable cash |
The reason Polymarket and prediction market apps operate in non-online sports betting states is due to being a CFTC regulated exchange
How to Redeem Polymarket Promo Code ACTION
- Tap here to download the Polymarket US app on iOS or Android.
- Sign up by entering your name, address, phone number, and Social Security number.
- Type in the Polymarket promo code ACTION when prompted.
- Clear identity verification to finish registration.
- Deposit $10 or more using an approved banking method
- Collect $20 in trading credits and take a position on Cardinals-Reds MLB action this afternoon.
Our certified Polymarket referral code ACTION is exclusively available new accounts, so existing users are unable to register.
Cardinals vs. Reds Odds: Polymarket vs. Kalshi
The two most popular prediction markets disagree on how they anticipate Cardinals-Reds going, and that gap creates an edge.
| Game 1 market | Polymarket | Kalshi |
|---|---|---|
| Cardinals win | 46¢ | 52% |
| Reds win | 55¢ | 48% |
| Volume | About $570K | About $291K |
Kalshi traders have the Cardinals as the slight favorite at 52%. Polymarket traders price the same team as a 46¢ underdog. Six points of daylight on one baseball game rarely survives to first pitch.
My advice is to redeem Polymarket promo code ACTION and claim your bonus as soon as possible to capitalize on the MLB odds above of the Cardinals' pulling off the upset.
My Cardinals vs. Reds Pick
Pick: Cardinals to win, 46¢ on Polymarket. Use your $20 bonus to cover this position outright.
- Chase Petty starts for Cincinnati. The Reds optioned Petty to Triple A Louisville to open 2026, and his major league track record stays rough.
- Quinn Mathews brings a fresh look. He owns a 3.27 ERA over 99 Triple A innings this season and held Toronto to two earned runs across five innings in his season debut. Cincinnati holds no film on him.
- Splits favor the visitors. St. Louis sits at 30-27 on the road. Cincinnati sits at 30-32 at home.
- The risk: Mathews walks batters. His Triple A walk rate sat near 14 percent, down to roughly 10 percent across nine starts since June.
Petty hands St. Louis too many free innings to pass on plus money.
Why Grab the Polymarket Referral Code ACTION
- Small commitment. $10 becomes $30 of total trading power (your $10 deposit plus $20 bonus funds).
- No sportsbook vig. Other traders set the prices, not a house. This keeps trading fair and honest.
If you like my picks, sign up now with Polymarket promo code ACTION, deposit $10, and trade Cardinals vs. Reds with $30 total before 1:40 p.m. ET.
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.
