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Polymarket promo code SPORTSLINE: Get $25 bonus for Washington-Purdue CFB, Rays-Guardians ALCS Friday

New Polymarket users can get a $25 bonus after depositing $10 or more to make trades

ByJason Hall·Updated: Oct 16, 2026 11:38AM ET·4 min read

The Polymarket promo code SPORTSLINE gives new users a $25 bonus after they sign up and deposit at least $10, which includes college football and Major League Baseball prediction markets. Friday's action will include three FBS games and Game 4 of the American League Championship Series. Click here to get started at Polymarket and claim your $25 bonus after depositing $10 with the Polymarket promo code SPORTSLINE:

Washington (3-3) will face Purdue (3-3) in a Big Ten Conference matchup scheduled for 8 p.m. ET, Memphis (5-1) will take on Tulane (2-3) in an American Conference game set for 7:30 p.m. ET and Appalachian State will face Coastal Carolina in a Sun Belt Conference matchup at 8 p.m. ET.

Meanwhile, the Rays will face the Guardians in Game 4 of the ALCS, which is set for an 8 p.m. ET start time. Visit the Polymarket promo code review page for the terms and conditions of this offer.

You can sign up for Polymarket, one of the top prediction market sites, 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 $25 trading bonus: 

Purdue enters Week 7 ranked eighth among Big Ten teams in both total offense with 415.5 yards per game and scoring offense with 32.2 points per game. Quarterback Ryan Browne threw for 159 yards and one touchdown on 14 of 24 passing, while also recording 81 rushing yards and one touchdown on seven rushing attempts, during last week's 41-13 win against Minnesota.

Washington ranks 15th among Big Ten teams in total offense with 369.8 yards per game and 16th in scoring offense with 26.2 points per game. Quarterback Elijah Brown replaced injured starter Demond Williams Jr. and threw for 251 yards and three touchdowns on 28 of 39 passing during the Huskies' 41-24 loss to Iowa last week.

Purdue is trading at $0.49 per share to win by four or more points, while Washington trading at $0.52 per share to lose by three or fewer points or win outright, at Polymarket. Trade on college football games and more with the Polymarket promo code SPORTSLINE:

The Guardians took a 2-1 series lead with a 3-2 home win against the Rays Thursday night. Cleveland starter Gavin Williams threw 5.0 innings, recording nine strikeouts, one walk, two hits and two earned runs to earn the Game 3 win.

The Guardians rallied back from a 2-1 deficit in the fifth inning when Petey Halpin hit a two-run home run to score Patrick Bailey. Closer Cade Smith entered in the eighth inning to earn the save, recording two strikeouts in 1.1 innings pitched.

The Rays are trading at $0.51 per share to win on the road, while the Guardians are trading at $0.50 per share to win at home, at Polymarket. Trade on MLB games and more with the Polymarket promo code SPORTSLINE:

Polymarket offers different ways to keep its users safe with risk management tools like trading breaks, a voluntary opt-out feature and funding limits.  

Prediction Markets are regulated by the Commodity Futures Trading Commission (CFTC) - an independent agency of the U.S. federal government.

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.

Written by Jason Hall

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