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Polymarket promo code SPORTSLINE: Get $50 bonus for MLB, WNBA on Sunday, July 12
New Polymarket users can get a $50 bonus Sunday when they deposit $20 and trade on MLB and WNBA games

The 2026 World Cup wrapped up its quarterfinal round on Saturday and is on hiatus for a few days before the semifinals, but sports fans can still use the latest Polymarket promo code SPORTSLINE to get a $50 bonus when they deposit $20 to make trades on Sunday, July 12. There are 15 MLB games available for fans to make predictions on, as well as a key WNBA contest in primetime. Click here to get started and claim your $50 bonus after depositing $20 with the Polymarket promo code SPORTSLINE:
Check out the Polymarket promo code review page for the terms and conditions of this offer.
How to sign up for the Polymarket referral code SPORTSLINE
You can sign up for this Polymarket offer using the steps listed below. This offer is only available for new users.
- Click CLAIM BONUS on this page. Download the Polymarket app.
- Create an account and provide all the required information, such as name, email and payment details. Use the code SPORTSLINE to get your bonus.
- Make a first deposit by your preferred deposit method and follow the prompts.
- New users must deposit at least $20 in contracts for the $50 trading bonus to be applied to their account.
After depositing $20 with the Polymarket promo code, new users will be given a $50 trading bonus:Â
Sunday trading preview
- Dodgers to win vs. Diamondbacks ($0.68)
- Aces to win vs. Fever ($0.65)
The two-time defending champions Dodgers are trying to avoid a sweep at the hands of the Diamondbacks as both teams head into the All-Star break, with Arizona winning 9-3 and 9-2 in the first two contests of the series. Emmet Sheehan (4-6, 4.91 ERA) gets the call for Los Angeles on Sunday, while Arizona sends out Mitch Bratt (0-0, 3.00 ERA). The Diamondbacks have won three in a row but are streaky this season and have hovered around .500 due to their inconsistency. The SportsLine Projection Model has the Dodgers prevailing on Sunday in 75% of simulations, resulting in a "B" grade.
Caitlin Clark is set to play in Sunday's massive showdown between the Indiana Fever and Las Vegas Aces as she deals with a back injury. The league's official injury report lists her as "probable", which means fans can take in a Clark vs. A'ja Wilson showdown. Wilson is averaging 25.8 points and 9.7 rebounds per game for the Aces, who are looking for their fourth WNBA title in five seasons. It's a great measuring stick for the Fever, who sit 3.5 games back of Las Vegas in the WNBA standings. Given the Aces just demolished Phoenix 106-58, it seems wise to back the home team on Sunday even though Clark can change the outcome of a game singlehandedly.
Trade on MLB, WNBA and more with the Polymarket promo code SPORTSLINE:
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Event contracts trading involves a risk of substantial loss and is not suitable for all investors. Participation in prediction markets is subject to applicable eligibility requirements. Participation may be restricted or prohibited in certain jurisdictions and participants are responsible for ensuring their participation complies with applicable laws and regulations in their jurisdiction.
