Polymarket promo code SPORTSLINE: Collect a $20 bonus for Red Sox-Dodgers, Giants-Padres, MLB on Friday

It's Friday night in the MLB, and there are 15 games for baseball fanatics to enjoy, plus the latest Polymarket promo code SPORTSLINE, which gives new users a $20 bonus when they deposit $10 to make trades. The Boston Red Sox and Los Angeles Dodgers clash in a coast-to-coast battle. The San Francisco Giants meet with their divisional rivals, the San Diego Padres, in primetime and look to continue their successful stretch of baseball against top teams ahead of the trade deadline. Click here to get started and claim your $20 bonus after depositing $10 with the Polymarket promo code SPORTSLINE:

For the terms and conditions of this offer, be sure to check out the Polymarket promo code review page.

You can sign up for this Polymarket offer using the steps listed below. This offer is only available for new users.

After depositing $10 with the Polymarket promo code, new users will be given a $20 trading bonus:  

In a Friday night opener of a three-game series, the Los Angeles Dodgers face the Boston Red Sox at Dodger Stadium in a high-powered offensive matchup. Entering tonight, the Dodgers are seeking to become the first to 70 wins in 2026, while the Red Sox are pushing for a better position in the AL East. Boston has a 32-22 record on the road this season, and in a game that features two of baseball's oldest teams, power hitters are what to watch for in this meeting. Ranger Suarez is on the mound tonight for the Red Sox, and the Dodgers' Mookie Betts, who is trading at $0.14 to homer at least once on Polymarket, has two home runs and 4 RBIs in his career against the Boston ace pitcher. Los Angeles is also priced at $0.54 per share to win over the Red Sox at $0.46 on Polymarket, and nine or more runs in this evening's game is trading at $0.42 per share. 

The Cincinnati Reds beat the Pittsburgh Pirates 3-2 yesterday in a walk-off win. Hunter Greene is on the hill tonight for the Reds, and in his last start at Great American Ball Park, he had 12 strikeouts over seven scoreless innings. He is trading at $0.56 on Polymarket to have 7 or more strikeouts in this evening's meeting. The Pirates are looking to bounce back after losing three straight games. Cincinnati and Pittsburgh are both divisional rivals searching for momentum in this series to leverage a National League Wild Card spot. Polymarket has eight or more runs in tonight's meeting trading at $0.53 per share. The Pirates are also priced at $0.54 per share to win over the Reds, who are priced at $0.47 on Polymarket.

The San Francisco Giants beat the San Diego Padres 4-1 last night, and they are building good momentum ahead of next week's trade deadline. This meeting is their second straight series against a National League contending or divisional leader. The Padres are trailing the Phillies by two games for the final wild card spot heading into game two of tonight's action that can be streamed nationwide. The Padres are trading at $0.58 per share to win over the Giants, priced at $0.43. San Diego's Jackson Merrill has a .326 batting average in his career against the Giants, and he is trading for $0.13 on Polymarket to homer tonight. San Francisco's Heliot Ramos is priced at $0.19 per share on Polymarket to hit at least one home run. Trade on the MLB and more with the Polymarket promo code SPORTSLINE:

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Janine Brown