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Polymarket promo code SPORTSLINE: Collect a $20 bonus for Rays-Tigers, Reds-Giants, MLB on Monday
New Polymarket users can get a $20 bonus on Monday when they deposit $10 and trade on baseball

It's a strong slate on Monday with 10 MLB games tonight, and baseball fans can use the newest Polymarket promo code SPORTSLINE, which gives new users a $20 bonus when they deposit $10 to make trades. Click here to get started and claim your $20 bonus after depositing $10 with the Polymarket promo code SPORTSLINE:
The Tampa Bay Rays and the Detroit Tigers meet in a key game where the Tigers are looking to bounce back after their five-game losing streak. Meanwhile, the Cincinnati Reds and San Francisco Giants hope to turn their seasons around in the final postseason push for playoff spots.
For the terms and conditions of this offer, be sure to check out the Polymarket promo code review page.
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 $10 in contracts for the $20 trading bonus to be applied to their account.
After depositing $10 with the Polymarket promo code, new users will be given a $20 trading bonus:
Monday MLB trading preview
The Tampa Bay Rays and the Detroit Tigers begin their three-game series tonight. The Rays are pushing forward in the tight American League playoff picture, as they currently have the best record in the AL heading into this evening's action. The Tigers are one of six teams that are in the AL wild-card hunt, sitting at 3.5 games back of the final spot. Drew Rasmussen, who has won six consecutive starts and has a 2.31 ERA during this stretch, is trading at $0.59 per share for five or more strikeouts. Framber Valdez takes the mound for the Tigers and is trading at $0.61 per share on Polymarket to strike out four or more batters. Tampa Bay is priced at $0.56 per share to beat Detroit, priced at $0.45 per share. Eight or more runs in tonight's meeting is trading at $0.52 per share.
The Cincinnati Reds play the San Francisco Giants tonight in the opening game of this National League series. The Reds are ranked sixth in MLB in home runs this season. The Giants have a 36-8 record when having five or more runs in a game this season. Chase Burns, who is pitching tonight for the Reds, has 22 strikeouts in his last three appearances. Rafael Devers has 72 RBIs and 25 home runs in 113 career games at Oracle Park. He is trading at $0.14 per share to hit a home run on Monday. Cincinnati is trading at $0.60 per share to win against San Francisco, trading at $0.41, and nine or more runs in this evening's game is priced at $0.41 per share. Trade on the MLB and more with the Polymarket promo code SPORTSLINE:
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Written by Janine Brown
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