Tonight's MLB slate closes with a compelling NL West matchup as the Diamondbacks take on the Padres at Petco Park in San Diego. Register with the Polymarket promo code ACTION to trade on the action. Sign up at Polymarket and deposit $20 into your account to trigger $50 in bonus funds. Use your increased buying power to trade on MLB games, such as Diamondbacks vs. Padres at 10 p.m. ET on ESPN.
Polymarket is available nationwide, with the exceptions of eight states: AZ, IL, MA, MD, MI, MT, NV, and OH. Click the module below to capitalize on Polymarket promo code ACTION and trade on tonight's MLB odds as San Diego looks to close out this series at home.
What is Polymarket Promo Code ACTION?
Get enrolled in a $50 new player promotion when you sign up using the Action Network Polymarket promo code ACTION. Tap the Polymarket new player module below to take advantage of our code and make a $20 deposit to score the $50 in promotional funds.
Polymarket ranks as one of the top prediction market apps by Action Network experts. Use Polymarket for a fun and immersive way to place baseball picks, regardless of whether or not online sports betting operates in your state.
| Polymarket Promo Code | ACTION |
| Bonus Amount | $50 |
| First Deposit Requirement | $20 |
| Upcoming Games | Diamondbacks vs. Padres |
| Age Requirement | 18+ |
| Restricted States | AZ, IL, MA, MD, MI, MT, NV, or OH |
| Bonus Last Verified On | Wednesday, July 8, 2026 |
Why is Polymarket Referral Code ACTION the Best Prediction Market Promo for Diamondbacks vs. Padres?
The Polymarket promo code ACTION is atop our expert list of prediction market promos for Diamondbacks vs. Padres tonight. Here are a few reasons I support Polymarket as the best prediction market promo for this matchup:
- Polymarket offers $50 in buying power, which is more than multiple competitors' respective bonuses combined
- None of your hard-earned and deposited cash needs to be put on the line before Polymarket gives you $50 in bonuses to work with
- Polymarket trading bonuses can be split up and spent however you wish over seven days before they expire
Lock in the best way to trade on Diamondbacks vs. Padres by creating a new Polymarket profile.
Polymarket Promo Code ACTION Sign-Up Steps
Follow these steps to register with Polymarket referral code ACTION and unlock $50 in trading bonus funds:
- Tap this link to install Polymarket on iOS or Android mobile device now.
- Type in the Polymarket promo codeACTION when prompted for one.
- Enter your personal identifying information required to make a Polymarket account.
- Upload an image of a valid government-issued ID to complete identity verification.
- Make a 20+ deposit using any approved banking method, including Apple Pay.
- Unlock $50 in trading bonus funds for Diamondbacks vs. Padres tonight.
Expert tip: Employ the Action Network prediction market odds converter to take a look at your potential winnings on every trade before you submit it.
Diamondbacks vs. Padres — Polymarket MLB Market Analysis (10 p.m. ET on ESPN)
The Padres enter tonight as the slight favorite at Petco Park, backed by a meaningful pitching advantage. Walker Buehler takes the mound for San Diego at 5-4 with a 4.61 ERA, facing Arizona's Zac Gallen, who is 3-8 with a 6.36 ERA and coming off a disastrous outing against the Cubs. Trade on Diamondbacks vs. Padres best bets and odds once you redeem Polymarket referral code ACTION:
| Outcome | Polymarket Probability | Polymarket Price |
|---|---|---|
| Padres Win | 52% | $0.52 per contract |
| Diamondbacks Win | 49% | $0.49 per contract |
Let's say you decide to tail my pick and trade on the Padres to win at Polymarket.
Set up your new account, deposit $20, and pocket $50 in trading bonus funds. Use your entire $50 sign-up bonus on the Padres to win tonight — at $0.52 per contract, that buys approximately 96 contracts. If the Padres win and each contract settles at $1, that position returns approximately $96, representing roughly $46 in profit. If the Padres lose, contracts settle at $0 and the position goes to zero — but the good news is that it came from your bonus funds, not your own cash.
Must be 18 years or older and have a legal, U.S. residential address within the applicable state, D.C., or U.S. territories. Not available in AZ, IL, MA, MD, MI, MT, NV, and OH.
