After a long season, we have finally reached crunch time in the MLB postseason, with both NLDS Game 3 matchups set for tonight. Get in on the action before the first pitch with our Polymarket sign up bonus, offering new players $25 in bonuses to bankroll tonight’s baseball from 6 p.m. ET.
- Braves vs. Dodgers – 6 p.m. ET – FS1/FOX
- Padres vs. Brewers – 9:30 p.m. ET – FS1/FOX
The Dodgers and Braves are tied one apiece in their series, setting up a massive Game 4 coming our way Wednesday. The Brewers could wrap up their series with a win over the Padres, with San Diego desperately trying to hang in there at home.
If you’re looking to get involved with the MLB markets on a prediction market app tonight, look no further than the Polymarket sign up bonus. The $25 comes your way from a mere $10 deposit, no spend needed, and all you need to do is use the Polymarket promo code ACTION when signing up.
Polymarket Sign Up Bonus Overview – Use Code ACTION
| Polymarket Sign Up Bonus | Deposit $10, Get $25 in Bonuses |
| Polymarket Promo Code | ACTION |
| Deposit Requirement | $10 |
| Bonus Credit | $25, instant |
| Slate | MLB NLDS Game 3 |
| Eligibility | New Polymarket traders only, 18+, |
| Platform Type | iOS or Android – App Only |
| Time to Receive Bonus | Immediate, no multi-day wait |
| Last Verified | Oct. 6, 2026 by Tom Fuller |
What can I use my Polymarket Sign Up Bonus on?
This is the time of the season for our MLB experts. We have been pouring over the postseason matchups for days now with prediction markets. Tonight we’re doing a deep dive on the Padres game and making use of Polymarket’s newest feature, Polymarket Combos.
With Polymarket Combos, you can place multiple contract markets into one. The prices of all the options are combined, and all trades included must resolve as ‘Yes’ for it to land. Maximise your Polymarket sign up bonus of $25 tonight with a combo such as:
- Fernando Tatis Jr. – 2+ Hits – 50%
- Manny Machado – 1+ Hits – 50%
- San Diego Padres – Moneyline – 55%
- Combined Payout – 7.34x
- $25 Winning Trade = $183.49
Prices correct at the time of publishing and subject to change. Check market to get latest prices.
Tatis is dominant in October, carrying an impressive .286 career average in the postseason. Batting in the top order, expect him to have many opportunities to register a hit. Machado, meanwhile, has set the diamond alight with (3 hits in 7 ABs, 1 HR, 2 RBIs) across his last two playoff games.
It is do-or-die for the Padres tonight; they will be on the beach without pulling off a win. With the home crowd at their back, impressive hitters, and the weight on them, nothing less than victory is enough.
Trade your $25 Polymarket sign up bonus funds on this combo, and you can take down as much as $183.49 tonight. Using the $25 from the Polymarket promo code ACTION is the smart play here as well; using house funds for a longshot trade that might not land, instead of your own cash, keeps your bankroll and balance protected, making it one of the best prediction market promos out there right now.
How do I Claim my Polymarket Sign Up Bonus?
- Use one of our Polymarket sign up bonus links
- Download the Polymarket app and start creating an account
- Deposit $10 using a linked payment method
- Enter Polymarket MLB promo code HANDLE in the promo field
- Confirm the $25 bonus posts to the account
Polymarket Sign Up Bonus FAQs
What is the Polymarket sign up bonus offer?
The Polymarket sign up bonus offer unlocks a $25 bonus for new traders with the Polymarket promo code ACTION.
Does the Polymarket promo code work for both games today?
Yes. The same Polymarket promo code applies to Guardians vs. White Sox at 4 p.m. ET and Rays vs. Yankees at 8 p.m. ET, with no second code needed.
What deposit is needed for the Polymarket sign up bonus?
A $10 deposit meets the full requirement, and the Polymarket MLB promo code ACTION returns $25 in bonus credit right away.
18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See polymarket.com/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 exchange and clearing organization.
