New DraftKings Promo Code: Claim Updated $300 Bonus for Blue Jays vs. Mariners Wednesday MLB Playoffs

Fahad Umar
October 15, 2025
9:20 am

Claim the brand-new DraftKings promo code and use a $300 bet-and-get offer on a pivotal ALCS Game 3 between the Toronto Blue Jays and Seattle Mariners at 8:08 p.m. ET on FS1. The Mariners look to take a commanding 3-0 series lead, with a chance to go to the first World Series appearance in franchise history. Get in on the action with the DraftKings promo code and wager on the Wednesday MLB playoff game.

Right now, new users can bet $5 on -500 odds or longer. This unlocks the three-month NBA League pass trial and if your bet wins, you also receive $300 in bonus bets to use within seven days. Follow the steps below to claim the DraftKings promo code offer today, October 15, 2025.

How to Claim the DraftKings Promo Code Offer

It only takes a few minutes to claim the upgraded DraftKings sign-up bonus:

Use the following link now to sign up with the DraftKings promo code and create your new online sportsbook account.
Enter and verify your personal information, including your name, email address, and home address.
Agree to the DraftKings Sportsbook terms and conditions.
Make your $5+ first cash deposit using any of the available DraftKings Sportsbook banking methods.
Submit a $5+ first bet on Blue Jays vs. Mariners ALCS Game 3 and get $300 in bonus bets, if your bet wins, plus three months of NBA League Pass.

Use New Customer Bonus on DraftKings Sportsbook for Blue Jays-Mariners ALCS Game 3

After creating a new account with the DraftKings promo code, make your first deposit and place $5 on heavily-favored odds from Blue Jays vs. Mariners. You need to win the first bet to get the $300 in bonus bets, so it makes sense to find the shortest odds possible for the best chance of winning. DraftKings offers alternate spreads, such as Mariners +2.5 (-431), which are exceptional for this welcome offer.

Blue Jays vs. Mariners Prediction: Mariners +2.5 (-431)

Here’s how the DraftKings promo code works:

Win the $5 first bet and get $300 in bonus bets, the $5 stake back, $1.16 in profit, and three months of NBA League Pass
If the bet loses, you get the three months of NBA League Pass

Why Use the DraftKings Promo Code Now?

Compared to some of the best sportsbook promos on the market right now, the updated DraftKings promo code stands out:

Low upfront cost ($5 minimum)
Huge upside ($300 in bonus bets)
Added perk of NBA League Pass
Perfect timing for Blue Jays-Mariners ALCS Game 3 and start of NBA regular season

This is the ideal time to take advantage of a brand-new, upgraded DraftKings promo code offer. Find a safe MLB betting line that meets the -500 odds or longer requirement, win your bet, and claim $300 in bonus bets plus three months of NBA League Pass today.

Conclusion: Use the DraftKings Promo Code for Wednesday MLB Playoffs

With the Mariners looking to take a commanding lead in the series, ALCS Game 3 is set to be an exciting matchup. Now is the perfect time to claim the new and updated DraftKings promo code offer before first pitch tonight, October 15, 2025.

Bet $5, Get $300 in bonus bets, if you win
Includes a three-month trial to NBA League Pass
Perfect timing with MLB Playoffs and start of 2025-2026 NBA regular season

Sign up now with this secure link, place your first bet on ALCS Game 3 tonight, and unlock the full value of this limited-time DraftKings offer.

GAMBLING PROBLEM? CALL 1-800-GAMBLER, (800) 327-5050 or visit gamblinghelplinema.org (MA). Call 877-8-HOPENY/text HOPENY (467369) (NY). Please Gamble Responsibly. 888-789-7777/visit ccpg.org (CT), or visit www.mdgamblinghelp.org (MD). 21+ and present in most states. (18+ DC/KY/NH/WY). Void in ONT/OR/NH. Eligibility restrictions apply. On behalf of Boot Hill Casino & Resort (KS). Pass-thru of per wager tax may apply in IL. 1 per new DraftKings customer. Must register new DraftKings account to receive reward Token. Must select Token BEFORE placing min. $5 bet to get 1 promo code to redeem 3-month NBA League Pass subscription, complimentary of DraftKings, and get max. $300 in Bonus Bets if your bet wins. Min. -500 odds req. Token and Bonus Bets are single-use and non-withdrawable. Bonus Bets expire in 7 days (168 hours) and stake removed from payout. Token expires 11/23/25. Terms: sportsbook.draftkings.com/promos. NBA League Pass: Subscription auto-renews monthly at then-current price (currently $16.99/mo); cancel anytime. Terms, restrictions, and eligibility requirements apply. Redeem League Pass by 12/19/25 at 11:59 PM ET. Addt’l terms: https://support.watch.nba.com/hc/en-us/articles/9165532876183-League-Pass-Terms-of-Use_. Offer ends 11/16/25 at 11:59 PM ET. Sponsored by DK.