Mariners vs Blue Jays Game 7 Odds & Probable Starting Pitchers

By Sascha Paruk in MLB Baseball
Published:

- The Blue Jays are Mariners are going to a seventh and deciding game in the 2025 ALCS
- Shane Bieber is slated to get the ball for Toronto, while George Kirby is next up for Seattle
- See the opening Mariners vs Blue Jays Game 7 odds and a comparison of the probable starting pitchers
The Toronto Blue Jays (100-72, 57-29 home) staved off elimination on Sunday night, forcing a deciding Game 7 in the 2025 ALCS with the Seattle Mariners (96-76, 42-44 away). Game 7 will take place on Monday night at the Rogers Center in Toronto at 8:08 pm ET.
Toronto is just 1-2 at home in the series, but has opened as a slight betting favorite in the Mariners vs Blue Jays Game 7 odds.
Mariners vs Blue Jays Game 7 Odds
The Mariners vs Blue Jays moneyline has opened with Toronto at -114 (53.27% implied win probability) to win the ALCS and Seattle at -102 (50.50% implied win probability). The run total has opened at 7.5 with -110 odds both ways. Game 1 of the ALCS was a 3-1 pitchers’ duel, but the last five games of the series have all featured eight or more runs and all hit the over.

Sign Up Today & Receive Up to
$1,050 in Bonuses!
Odds as of October 19th at FanDuel. See which bonuses are available at the top MLB betting apps ahead of Game 7.
The updated World Series odds list Toronto at +380, slightly ahead of the Mariners at +390. The NL-champion Dodgers are heavy -210 favorites as they await their AL counterpart in the 2025 Fall Classic.
SEA Mariners vs TOR Blue Jays Probable Starters for Game 7
The probable pitching matchup pits Seattle’s George Kirby against Toronto’s Shane Bieber, a repeat of the pitching matchup in Game 3. Given the way that Kirby was hammered by Toronto in Game 3, though, Seattle manager Dan Wilson could opt to go with the more-experienced Luis Castillo (3.54 ERA, 1.18 WHIP) on four days’ rest.
Bieber was much better that Kirby when the two squared off last Wednesday in Seattle. The former Cy Young-winner went six strong, allowing two runs on four hits and a walk with eight strikeouts. Julio Rodriguez crushed a two-run first-inning home run off the Toronto righty who pitched five scoreless thereafter.
Kirby was absolutely dismantled, allowing eight runs on eight hits (three homers) and three walks over 4.0 IP with four strikeouts. Vladimir Guerrero Jr, George Springer, and Andres Gimenez all took Kirby yard.
Kirby’s career numbers against the Toronto lineup, which already weren’t great, ballooned after his Game 3 start. In 72 total at-bats, the Blue Jays’ hitters have a .310 average and .864 OPS against the 6’4 righty. He hadn’t allowed a home run to anyone on Toronto’s ALCS roster until last Wednesday.
Bieber has excellent career numbers against the Seattle lineup, holding them to a .221 average and miniscule .546 OPS in a massive 131 AB sample size.
- BETMGM SPORTSBOOK
USE CODE SBD1500 & GET $1,500 BACK IN BONUS BETS
- BET365 SPORTSBOOK
BET $5 & GET $200 IN BONUS BETS WITH CODE DIME365
- FANATICS SPORTSBOOK
BET $10, GET $100 IN FANCASH + GAMEDAY GUARANTEE
- DRAFTKINGS SPORTSBOOK
BET $5 & GET $300 IN BONUS BETS IF YOUR BET WINS + 3 MONTHS OF NBA LEAGUE PASS
- FANDUEL SPORTSBOOK
BET $5 & GET $300 IF YOUR BET WINS
- CAESARS SPORTSBOOK
USE CODE SBD20X & BET $1 TO DOUBLE THE WINNINGS ON YOUR FIRST 20 WAGERS!
- ESPN BET SPORTSBOOK
USE CODE DIME TO UNLOCK BET $10, GET $100 BONUS & ESPN+
DRAFTKINGS SPORTSBOOK T&Cs: 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).
BET365 SPORTSBOOK T&Cs: Minimum $10 deposit required. Minimum odds -500 of greater. Bonus Bets wager excluded from returns. T&Cs, time limits and exclusions apply. GAMBLING PROBLEM? CALL OR TEXT 1-800-GAMBLER (AZ/CO/IL/IN/KS/KY/LA/MD/NC/NJ/OH/PA/TN/VA) or 1-800-BETS OFF (IA). 21+ only (18+ KY).
BETMGM SPORTSBOOK T&Cs: Gambling problem? Call 1-800-GAMBLER (Available in the US), Call 877-8-HOPENY or text HOPENY (467369) (NY), Call 1-800-327-5050 (MA), 1-800-NEXT-STEP (AZ), 1-800-BETS-OFF (IA), 1-800-981-0023 (PR). 21+ only. Please Gamble Responsibly. See BetMGM.com for Terms. First Bet Offer for new customers only (if applicable). Subject to eligibility requirements. Bonus bets are non-withdrawable. In partnership with Kansas Crossing Casino and Hotel. This promotional offer is not available in DC, MS, NY, NV, ON, or PR.

Managing Editor
Sascha has been working in the sports-betting industry since 2014, and quickly paired his strong writing skills with a burgeoning knowledge of probability and statistics. He holds an undergraduate degree in linguistics and a Juris Doctor from the University of British Columbia.