The Polymarket promo code ACTION turns a $10 deposit into $20 of bonuses for all brand new traders this Sunday. MLB action comes our way from Wrigley Field, where the Cincinnati Reds and Chicago Cubs close out their weekend series.
First pitch is set for 7:20 p.m. ET on Sunday, so there is plenty of time to get an account funded before the market moves.
New traders type ACTION in during the registration screen, clear identity verification, fund the account with $10, and Polymarket drops the $20 bonus straight into the balance; it is that simple. That two-for-one rate with no spend ranks it as one of the best prediction market promos right now.
What Does the Polymarket Promo Code ACTION Offer?
| Detail | Terms |
|---|---|
| Polymarket Promo Code | ACTION |
| Polymarket Promo Code Offer | Deposit $10, Get $20 in Bonuses |
| Minimum deposit | $10 |
| Age | 18+ |
| Regulator | CFTC-regulated derivatives exchange and clearing organization |
| Excluded states | AZ, IL, MA, MD, MI, MT, NV, OH, WA |
Reds vs. Cubs Polymarket Prices
Here is how the Reds vs. Cubs board looks ahead of Sunday's 7:20 p.m. ET first pitch.
| Market | Side | Price | Implied chance |
|---|---|---|---|
| Moneyline | Cincinnati Reds | 56¢ | 56% |
| Moneyline | Chicago Cubs | 64¢ | 64% |
| Run in the first inning? | Yes | 69¢ | 69% |
| Run in the first inning? | No | 71¢ | 71% |
The Cubs are the favorite and the Reds are the underdog. Chicago is the pricier side of the board at 64¢, and on a prediction market app the more expensive contract is always the one the market expects to win.
How does Polymarket pricing work?
Polymarket is not a sportsbook and there are no American odds to convert. You buy shares in an outcome at a price between $0.00 and $1.00, and every share of the winning outcome settles at exactly $1.00. Losing shares settle at zero.
That price is the market's read on probability. Cubs at 64¢ means traders collectively give Chicago roughly a 64% chance of winning. Reds at 56¢ implies about 56%.
The payout math falls straight out of the price:
- Buy the Cubs at 64¢. Every share costs 64 cents and returns $1.00 if Chicago wins. That is 36 cents of profit per share, a return of about 56%.
- Buy the Reds at 56¢. Every share costs 56 cents and returns $1.00 if Cincinnati wins. That is 44 cents of profit per share, a return of about 79%.
What Happened When I Used the Polymarket Promo Code ACTION?
I signed up before the series opener at Wrigley. With no trading even needed, I just watched the bonus roll into my account 10 minutes before first pitch. Luckily, I got on the under early and had a good evening with the MLB markets; the Sunday finale here we come.
- Registration to funded account: Just over five minutes. KYC cleared in under three, faster than the sportsbook apps I use.
- The $20 arrived instantly. My $10 debit deposit converted to USDC on its own, and the bonus showed in my balance before I closed the app.
- My first trade went under 8.5. The MLB market price filled instantly at the displayed price, which matched what the app quoted before I tapped confirm.
- The bonus trades like real capital. I bought Cubs shares at 58 cents earlier in the week and sold at 71 cents that night without touching my own $10.
That separates this from sports betting sites. Share prices between $0.00 and $1.00, winners settle at $1.00, and you exit any position before first pitch, mid-game, or whenever the price suits you.
I found the $20 useful as it bought you room to learn the order book without risking real money on your first few positions. Treat it as tuition, not a lottery ticket.
How Do You Claim the Polymarket Promo Code ACTION?
- Open a new Polymarket US account through one of our sign-up links.
- Enter the Polymarket promo code ACTION in the promo field during sign-up.
- Finish KYC — legal name, address, and the last four of your SSN.
- Deposit $10 or more by debit card or bank transfer.
- Watch $20 in bonus credit hit the balance, then trade the Reds-Cubs market.
The order you do this matters. Polymarket blocks codes on existing accounts, so anyone who skips step two forfeits the offer.
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, OH, and WA.
