Polymarket Promo Code MRGAMB: $20 Bonus for Padres vs Diamondbacks Predictions

New Polymarket users get $20 in trading credit after depositing $10, using promo code MRGAMB. Here’s how the offer works, plus a betting look at tonight’s Padres-Diamondbacks game at Chase Field.

polymarket promo for mlb betting
Polymarket promo code MRGAMB for $20 Bonus

Polymarket Promo Code Details

  • Code: MRGAMB
  • Bonus: Deposit $10, get $20 in trading credit
  • Eligibility: 18+, U.S. resident with a valid Social Security Number
  • Availability: Nationwide; a few individual contracts are restricted by state

How to Claim the Polymarket Promo Code MRGAMB

  1. Open the link above on your phone or computer. It attaches MRGAMB automatically, so there’s nothing to type in.
  2. Sign up with your name, address, phone number, and SSN. Polymarket is CFTC-regulated, so identity verification is required.
  3. Add funds with a debit card, bank transfer, or Apple Pay.
  4. Deposit $10 or more. The $20 credit hits your account as soon as the deposit clears.

San Diego Padres at Arizona Diamondbacks

Time: 9:40 PM ET

Arizona (60-53) took the series opener from San Diego (58-55) 5-1 on Monday and now holds a 4-3 edge over the Padres in the season series. The Diamondbacks are 5-1 in their last six games and have scored at least four runs in four of them.

Eduardo Rodriguez starts for Arizona and has been one of the better pitchers in baseball lately, 10-3 with a 2.48 ERA and 88 strikeouts this season, and he’s allowed two runs or fewer in eight of his last nine starts. San Diego counters with Randy Vasquez, who’s been used mostly in relief recently and carries a 6-6 record with a 4.45 ERA.

On Polymarket, Arizona is trading at $0.52 to San Diego’s $0.49 on the moneyline, a near coin-flip, even with Rodriguez’s edge on the mound and Arizona’s strong home record at Chase Field. San Diego has been hot overall, winners of eight of their last ten, but they’ve struggled against NL West teams with winning records, losing seven of their last eight in that spot. That tension between the season-long trend and tonight’s pitching matchup is likely why the market hasn’t fully committed to either side. Check the live board closer to first pitch, prices like these tend to move once the lineups are official.


18+. Gambling problem? Call 1-800-GAMBLER. Prediction markets carry risk of loss. Confirm current pricing in the Polymarket app before trading — odds shown here can change before first pitch.