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Polymarket Promo Code SOUTH: Get $20 Bonus for MLB Predictions Thursday (Aug. 13)

Danny Small

By Danny Small

Published:

Utilizing Polymarket promo code SOUTH grants new players an exclusive welcome offer: trade just $10 and receive a $20 sign-up bonus. Click here to get in on the action.

This substantial capital provides an excellent opportunity to engage with high-interest outcomes across the MLB schedule, including the Seattle Mariners visiting the New York Yankees and the Boston Red Sox facing the Toronto Blue Jays. Whether you plan to utilize this starting capital on MLB games or look at the NFL preseason matchups, Polymarket offers a wide range of options.

Polymarket Promo Code SOUTH Unlocks $20 Sign-Up Bonus

The Polymarket welcome offer is designed to provide new users with significant starting capital for prediction market engagement. By entering the special promotion code SOUTH during registration, new Polymarket customers can claim a $20 bonus after making a minimum $10 initial trade, effectively yielding a 200% return on the first contribution.

This capital can be immediately utilized for trading outcomes related to the ongoing MLB schedule.

Polymarket Promo CodeSOUTH
New User Offer$20 sign-up bonus
Terms and Conditions18+ and Present in the US
Bonus Last Verified OnAugust 13, 2026

To unlock this $20 bonus, new Polymarket customers must make an initial trade of at least $10. This offer is strictly limited to new users who are 18 years of age or older and reside in an eligible state where Polymarket is currently operating. Once these requirements are met, the bonus is credited, setting you up to trade throughout the MLB season.

Analyzing These MLB Prediction Markets

Take a look at a few of the most intriguing MLB matchups available on Thursday. Here is a look at the current probabilities on three games:

MatchupProbability
SEA @ NYYSEA 43% / NYY 58%
BOS @ TORBOS 60% / TOR 41%
CHC @ WSHCHC 58% / WSH 43%

The current slate features matchups with recent roster shakeups. The Chicago Cubs recently acquired experienced right-hander Kevin Gausman, bolstering their rotation as they take on the Washington Nationals, who are currently focused on integrating young talent and evaluating new pitching prospects. Meanwhile, the New York Yankees lineup benefits from the addition of New York native Luis Garcรญa Jr., providing additional firepower against the Seattle Mariners. Not to mention, the Yankees also brought up highly-touted prospect George Lombard Jr. to take over at shortstop.

Boston is supported by a significant pitching advantage. The Red Sox staff boasts an excellent 3.49 team ERA overall and an elite 2.91 bullpen ERA. By comparison, the Blue Jays pitching staff holds a 3.99 overall ERA, with their bullpen ERA sitting notably higher than Boston’s at 3.73. While both teams display similar hitting metrics (BOS OPS 0.721 vs. TOR OPS 0.679), Bostonโ€™s superior pitching performance positions them as the lower-risk selection for trading outcomes.

How to Activate Polymarket Promo Code SOUTH

Ready to engage with the outcomes of the MLB schedule? Activating your promotional offer is simple and ensures you are ready to participate in the excitement surrounding key matchups. To qualify for the special new user promotion, follow these easy steps:

  1. Create Your Account: Register your new Polymarket account, providing standard personal information as required.
  2. Verify Identification: Complete the necessary steps to provide proof of identification.
  3. Enter Promo Code: During the registration process, be sure to enter the promo code SOUTH to lock in your offer.
  4. Make Your Trade: Place a first-time trade of at least $10.

Once these five steps are completed, your account will be activated, and the $20 bonus will be credited, allowing you to begin trading on upcoming events across the MLB season.

Danny Small

Commercial content writer for Sportradar. Never had the makings of a varsity athlete.

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