Polymarket Promo Code INSIDER: Deposit $10, Get a $50 Trading Bonus for Braves-Phillies Tonight
Updated on 10/1/26
If you're looking for a Polymarket promo code, here's the offer currently available: new users who sign up with code Polymarket promo code
With the Braves and Phillies squaring off tonight, there's a clean opportunity to put that bonus to work on a specific market that looks mispriced. Below is how to claim the offer, how to sign up, and a pick worth considering for tonight's slate.
Polymarket Promo Code INSIDER: Deposit $10, Get $50
This is about as straightforward as sign-up bonuses get:
- Deposit $10 minimum
- Enter Polymarket promo code INSIDER at signup
- Receive a $50 bonus added directly to your account
- No trade required to unlock the bonus, it lands once your deposit clears
- Depositing more than $10 does not increase the bonus; it's a flat $50
- The bonus expires 30 days after it's credited, so don't let it sit unused
For more background on how Polymarket's US product works and other current offers, check out our full breakdown on the Polymarket promo code page.
How to Sign Up and Claim the Bonus
You'll need to be 18 or older and physically located in an eligible state. Polymarket US isn't currently available in Arizona, Illinois, Massachusetts, Maryland, Michigan, Montana, Nevada, Ohio or Washington. Have a government-issued photo ID and your Social Security number ready — verification asks for both.
1. Download the app (~1 min)
Get the Polymarket US app from the App Store or Google Play. Make sure it's the official Polymarket US app — the international Polymarket.com platform is a separate product, and the bonus doesn't apply there.
2. Enter promo code INSIDER during signup (~2 min)
Create your account with an email and password. When you reach the promo or referral code field, enter INSIDER. This is the step people miss, and there's no way to apply the code after the fact — skipping it forfeits the $50 bonus.
3. Verify your identity (~2–5 min)
Enter your legal name, date of birth, address and SSN, then follow the prompts to photograph your ID. Most approvals come back in a couple of minutes. If yours is held for manual review, you can move on to the next step and come back later — you just won't be able to trade until it clears.
4. Allow location access (~30 sec)
Polymarket checks your location every time you trade, as CFTC rules require. Turn on location permissions when prompted. If the check fails, disable any VPN, switch from Wi-Fi to cellular data, and confirm precise location is enabled in your phone settings.
5. Deposit at least $10 (~2 min)
Fund your account with debit card, Apple Pay or bank transfer (ACH). Card and Apple Pay are instant; ACH takes 1–3 business days, and the bonus won't post until the deposit clears. If you want to trade today, use a card or Apple Pay.
6. Confirm the $50 bonus has landed (~1 min)
Once the deposit processes, check that your balance shows $60 — your $10 plus the $50 bonus. You don't need to place a trade to unlock it. If your balance still reads $10 after the deposit has cleared, contact support through the in-app chat before trading.
7. Place your first trade
Pick a market you already follow — a single game, a futures market, an election, or anything else — and buy Yes or No shares. Contracts trade between $0.01 and $0.99, and the price reflects the market's implied probability. You can sell any time the market is open rather than waiting for the event to settle.
Tonight's Pick: Matt Olson Over 0.5 Home Runs (Priced at 19%)
With that $50 bonus in hand, tonight's Braves-Phillies matchup offers a market worth a look: Matt Olson Over 0.5 Home Runs, currently priced at just 19%.
I don't know what the books are doing with their pricing for the Braves tonight, but I'm going to take advantage. Aaron Nola is not the same pitcher he used to be — he's allowed a high 1.95 HR/9 to right-handed batters this season, and 1.87 HR/9 to lefties. That's a matchup that plays well above average for power from both sides of the plate, yet the Braves are priced as if they're facing an above-average pitcher.
I get that Nola may only go 4-5 innings, but even factoring that in, these odds are too high. My true odds land closer to 20%, which makes the current 19% price a market worth buying into.
Why Prediction Markets Work Well for Spots Like This
Markets like Polymarket price outcomes as probabilities rather than traditional odds, which makes it easier to spot situations where the market hasn't fully adjusted to a pitcher's underlying trends — like Nola's home run rate this season. If you're comparing Polymarket to other options, our guide to the best prediction market apps breaks down how the major platforms stack up on markets, fees, and usability.
Bottom Line
The Polymarket promo code INSIDER turns a $10 deposit into a $60 balance before you've made a single trade. That's $50 of free capital to put toward tonight's slate. With Olson's home run market priced well under what the matchup supports, it's a solid first spot to put that bonus to work. Just remember: the bonus expires 30 days after it's credited, so don't let it go unused.