As of Tuesday, October 15, 2025, FanDuel Sportsbook is giving baseball fans the chance to bet on Game 3 of the ALCS between the Toronto Blue Jays and Seattle Mariners with one of the best welcome offers in sports betting.

New users who register and place a $5 wager on any market will unlock $300 in Bonus Bets if their first bet wins —just in time for tonight’s postseason opener in Seattle.

How to Claim the FanDuel Promo Code:

Here’s how to activate your FanDuel MLB postseason offer today:

Sign Up: Create your FanDuel Sportsbook account using one of the secure links in this article.

Deposit: Add at least $5 to your account.

Bet: Wager $5 on any event, including tonight’s ALCS Game 3.

Win: If your first bet wins, you’ll receive $300 in Bonus Bets within 72 hours.

The bo

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