Polymarket Promo Code GRINDERS: Get a $20 Trading Bonus!
Updated on 8/3/26
New users who enter the Polymarket referral code
Polymarket US lets American traders buy and sell shares on real-world outcomes, with each contract’s price moving as traders take positions. And with the MLB regular season heading into its final stretch, the races are unusually crowded this year, which keeps pennant-race and Wild Card markets among the most active on the board right now, aka a natural spot to put that welcome bonus to work.
Enter the Polymarket referral code
What is the Polymarket Referral Code?
The Polymarket referral code is
The $20 trading bonus is issued as trading credits, which cannot be withdrawn as cash right away. The credits must first be used as collateral for a position. Once that position is settled or closed, any resulting funds may become available for withdrawal under Polymarket’s standard rules.
| 💰 Polymarket Promo Code / Polymarket Referral Code | |
| 🎁 Polymarket New User Offer | |
| 🌎 Bonus Available In | AL, AK, AR, CA, CO, CT, DE, FL, GA, HI, ID, IN, IA, KS, KY, LA, ME, MN, MS, MO, NE, NH, NM, NJ, NY, NC, ND, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY, DC |
| ❌ Bonus Not Available In | AZ, IL, MA, MD, MI, MT, NV, and OH |
| ✍️ Terms | |
| ✔️ RotoGrinders Last Verified On | August 3, 2026 |
How to Use the Polymarket Promo Code GRINDERS
- Download the Polymarket US app from the App Store or Google Play.
- Create a new account and enter
GRINDERS in the promo or referral code field during signup. - Complete the identity-verification process in the app.
- Deposit at least $10 by debit card or ACH bank transfer.
After the qualifying deposit clears and the offer requirements are met, the $20 trading credit is added to the account.
If you want to compare Polymarket with another prediction market, check out our review of the Best Prediction Market Apps.
Polymarket’s Legal Journey in the US
Polymarket returned to the U.S. market through QCX LLC, a CFTC-designated contract market it acquired in 2025. The main regulatory and business milestones include:
- June 2026: The CFTC sought public comment on a proposed framework for reviewing event contracts involving activities such as gaming, war, terrorism, assassination, or conduct prohibited by law.
- March 2026: MLB named Polymarket its Official Prediction Market Exchange. In a separate agreement, MLB and the CFTC established an information-sharing framework covering game and prediction-market integrity.
- November 2025: The CFTC amended QCX’s order of designation to permit intermediated trading through Polymarket US. On the other hand, PrizePicks announced a multi-year partnership to offer Polymarket event contracts through its planned prediction-market product.
- October 2025: Intercontinental Exchange announced an investment of up to $2 billion in Polymarket and an agreement to distribute its event-market data.
- July 2025: Polymarket closed its $112M acquisition of QCEX — a CFTC-licensed derivatives exchange (QCX, LLC) and clearinghouse (QC Clearing LLC).
- January 2022: Polymarket agreed to pay a $1.4 million CFTC penalty and wind down markets that didn’t comply with federal derivatives law.
Kalshi vs. Polymarket: Key Differences
Kalshi is another CFTC-designated event-contract exchange available in the U.S., and it’s usually compared to Polymarket because both allow users to trade on real-world outcomes. However, while they serve a similar purpose, differences show up in areas like interface design, liquidity in specific markets, funding methods, fees, and promotions.
Choosing between them comes down to your preferences and what’s currently available, which is why it’s a good idea to check each platform directly, review active contracts, and compare fees and trading conditions before deciding where to trade.
If you want to learn more about how these two differ, check out our Kalshi vs. Polymarket review.
Polymarket Pros and Cons
Pros
- Prices are set by other users trading, not by a sportsbook.
- You can add money using a debit card or bank transfer (ACH).
- You can sell your position before the event ends if someone is willing to buy it.
- There are markets for many major sports and live events.
Cons
- Some markets have fewer buyers and sellers, which can make it harder to get the price you want.
- Executed taker orders carry a fee under the current schedule, while executed maker orders receive a rebate.
How Sports Markets Work at Polymarket
Sports markets cover game winners, totals, player stats, and full tournament outcomes. Each contract trades between $0.01 and $0.99, with the price reflecting the market’s estimate of that outcome’s likelihood, a contract at $0.55 implies roughly a 55% chance.
Here’s the payout in practice: buy 90 “Yes” contracts at $0.55 and you spend $49.50 before fees. If the outcome hits, each pays out $1, that’s $90 back, a $40.50 profit. If it doesn’t, the contracts settle at $0 and you lose what you paid.
You don’t have to wait for the event to end, either. You can sell your contracts to another trader at the current market price anytime, which, depending on how the odds have moved, may be higher or lower than what you paid.
You can check out the DraftKings Prediction review app to explore all available sports markets.
Next Season’s Eastern Conference Champion
Even in the middle of summer, the numbers move whenever a big name changes teams. For example, LeBron James signing with the Philadelphia 76ers on a two-year deal (per ESPN), putting him next to Joel Embiid, gets traders rethinking how the East plays out. And with the season still months away, prices can move a lot before opening night as rosters fill in.
If you want to trade it, the contract prices in the app show you where each team stands right now.
What Else Can You Trade on Polymarket?
Polymarket isn’t just about sports. You’ll also find markets based on real-world events across areas like politics, finance, economics, technology, crypto, culture, climate, and global affairs.
The lineup of available markets can change over time, and the U.S. version of the platform may not include everything you see on Polymarket’s international site. So, before placing a trade, check what’s currently available in the app and read how each market will be settled, including the source used to determine the final outcome.
Tips for Trading Live Sports Markets on Polymarket
Live sports markets can move fast, especially after key moments like goals, injuries, lineup changes, or penalties. Because of this, it helps to have a clear plan before you place a trade.
Start by reading the settlement rules for the market. In soccer, for example, some contracts only count the result after 90 minutes, while others include extra time and penalties. Knowing this upfront can prevent confusion later.
Next, take a look at the current buy and sell prices. If there’s a big gap between them, it may be harder to get in or out of a position at the price you want. It’s also worth checking how many contracts are actually available at those prices, since low volume can limit your ability to trade smoothly. And if you want more control over your entry price, consider using a limit order instead of buying at the current market price.
Finally, think about your exit strategy before you trade. Decide whether you plan to hold your position until the market settles or sell if the price moves in your favor.
Remember: waiting until the very end of a match can sometimes make it harder to find a buyer, especially if activity slows down.
Banking Experience at Polymarket
Polymarket US runs on regular dollars. You fund your account with fiat and trade a dollar-denominated balance, so there’s no wallet setup or token swapping to deal with.
Deposit methods on the US app include:
- Debit card
- Bank transfer (ACH)
- Wire transfer
To add funds, open the app, click “Deposit” on your profile, pick your method, and confirm the amount. Debit card and ACH deposits are usually credited quickly, and withdrawals unlock once your deposit fully clears. Your available payout options show up in your account and generally match the method you used to fund it.
See how the banking experience at FanDuel Predicts compares to Polymarket’s.
Responsible Trading at Polymarket
Only trade with money you can afford to lose. Anyone who needs help with gambling-related harm can call or text the National Problem Gambling Helpline at 1-800-MY-RESET.
If you need more information on how to keep things fun, read our responsible trading guide.
Customer Support at Polymarket
Polymarket US offers support through in-app chat and by email at support@polymarket.us.
When contacting support, include the market name, order details, and transaction information connected to the issue. Never send your password or account-verification codes.
Polymarket Promo Codes FAQs
What is the Polymarket promo code and referral code?
The Polymarket promo code and referral code are both
Can I withdraw the $20 Polymarket bonus directly?
No. The credits must first be used as collateral for a position. Funds released after settlement or liquidation may then become available to withdraw.
Is Polymarket legal in the US?
Yes. Polymarket US operates through QCX LLC, a CFTC-designated contract market. Trading is currently unavailable in Nevada. Keep in mind the
Does Polymarket have sports betting?
Polymarket US offers sports event contracts rather than traditional sportsbook bets. Markets can include game winners, spreads, totals, props, tournament advancement, and futures.
If you want to bet on traditional sportsbooks, check out our guide on the Top 11 Best Mobile Sports Betting Apps
Does Polymarket charge fees?
Yes. Executed taker orders carry a fee under the current schedule, while executed maker orders receive a rebate. Canceled and expired orders aren’t charged a trading fee.
Is Kalshi better than Polymarket?
It depends on the markets you want to trade. Compare liquidity, fees, funding methods, available contracts, and current signup offers before choosing.