Free ALCS – Game 3 Pick: Blue Jays vs. Mariners Odds
Looking for Toronto Blue Jays vs. Seattle Mariners Free MLB predictions? MLB betting sees the Blue Jays taking on the Mariners on 10/15 at T-Mobile Park, in Seattle. Cappers Picks provides complimentary expert handicapping picks on all MLB baseball matchups all season long so stay tuned for more FREE daily MLB predictions like this Blue Jays Mariners free pick.
2025 MLB Handicapping – Toronto Blue Jays vs Seattle Mariners
ALCS – Game 3
(3-3) Toronto Blue Jays vs. Seattle Mariners (5-2)
Date: Oct 15, 2025
Time: 8:08 PM ET
Venue: T-Mobile Park in Seattle, WA
Projected Starting Pitchers: Shane Bieber vs. George Kirby
MLB Moneyline Odds: Blue Jays +114 | Mariners -134 (Bet Now!)
Today’s MLB Run Line Betting Odds: Blue Jays +1.5 | Mariners -1.5
MLB Baseball Gambling Total: O/U: 7
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Blue Jays vs. Mariners Gameday
Game 3 of the ALCS shifts to T-Mobile Park, where the Seattle Mariners return home holding a commanding 2–0 series lead over the Toronto Blue Jays.
First pitch is set for 8:08 PM ET on FS1, with Seattle looking to continue its postseason surge in front of a raucous home crowd.
Toronto, managed by John Schneider, finished the regular season at 94–68 but has struggled to find momentum away from home (40–41 road record).
The Blue Jays have been outscored by an average of 4.5 runs through the first two games of this series, and their offense has yet to find its footing against Seattle’s pitching staff.
Seattle, led by skipper Dan Wilson, posted a 90–72 record and has thrived at T-Mobile Park, winning 51 of 81 home contests.
Conditions will favor both starters — but all the pressure sits squarely on the Blue Jays, who face a potential 3–0 hole.
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Toronto Blue Jays vs. Seattle Mariners Odds & Last 5
Oddsmakers have Seattle listed as the Game 3 favorite at –135, while Toronto comes in as a slight underdog at +115. The runline shows Toronto +1.5 (–197) and Seattle –1.5 (+163), with the total runs set at 7.0.
Seattle has dominated the opening two games, winning 10–3 and 3–1 at Rogers Centre to take a 2–0 series edge. The Mariners’ pitching and timely power hitting have proven too much for Toronto’s lineup to handle so far.
The Blue Jays, who went 4–2 against Seattle in the regular season, started strong in the ALDS vs. NY, but haven’t carried that success into the ALCS.
Their lineup has been held to just four runs combined through two ALCS games.
Mariners Stats
The Mariners have showcased one of baseball’s most dangerous offenses this postseason. They ranked 3rd in the majors in home runs (238) and 7th in on-base percentage, showing their blend of power and plate discipline.
On the mound, Seattle boasts a 3.87 team ERA (12th overall) and ranked 6th in quality starts (67). Their pitching staff’s 1,426 strikeouts (7th) underline just how well they’ve executed down the stretch.
The Mariners have won four of their last five, including back-to-back statement victories in Toronto.
Cal Raleigh continues to deliver in the clutch — his 60 homers and 125 RBIs led the team — while veterans Jorge Polanco and Josh Naylor have kept the middle of the order productive.
With power, depth, and elite pitching consistency, Seattle enters Game 3 with all the momentum.
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Blue Jays Stats
Toronto’s offense has been among MLB’s most consistent throughout the regular season. The Blue Jays led the league in batting average (.265) and ranked 2nd in on-base percentage (.331).
Despite that, they’ve struggled in the postseason to cash in with runners in scoring position.
Their pitching staff owns a 4.19 ERA (18th overall) and has limited opponents to a .240 average (10th). However, inconsistency from the rotation has been an issue this October.
Vladimir Guerrero Jr. (.292 AVG, 23 HR) and Bo Bichette (.311 AVG, 94 RBI) remain the focal points of the lineup, but both have been contained through two games in this series.
Toronto will need a spark from its stars to keep the ALCS alive heading into Game 4.
Blue Jays vs. Mariners Pitching Matchup
Toronto: Shane Bieber (RHP) — Bieber brings a 3.57 ERA and 1.02 WHIP into this start, with a 4–2 record that underscores his steady form.
Known for pinpoint command, Bieber’s strikeout ability could help neutralize Seattle’s power-heavy lineup if he can get ahead early in counts.
Seattle: George Kirby (RHP) — Kirby takes the hill with a 10–8 record and a 4.21 ERA. His 1.19 WHIP suggests occasional command lapses, but his strikeout totals remain solid. When his fastball is working,
Kirby can control the tempo and generate soft contact — exactly what Seattle will need to protect its 2–0 advantage.
Toronto Blue Jays vs. Seattle Mariners bottom line: The Blue Jays’ season hangs in the balance, but Seattle’s blend of power hitting and home-field dominance gives them the upper hand.
Toronto Blue Jays vs. Seattle Mariners Baseball Betting Trends
- The Mariners have won four of their last five games straight-up.
- In their last five games, the Mariners have hit the over on totals three times.
- Also, the Mariners have covered the run line in three of their last five games.
- The Blue Jays have lost three of their last five games straight-up.
- Additionally, the Blue Jays have hit the under on totals in three of their last five games.
- The Blue Jays have failed to cover the run line in three of their last five games.
ALCS – Game 3 Blue Jays vs Mariners Prediction: Under 7.5
Here is my Blue Jays Mariners free pick. The Mariners have been on an impressive roll, winning four of their last five games and cashing the over in three of those. Yet, their postseason matchups with the Blue Jays have been much tighter, with one contest finishing under the total — hinting at another potential pitchers’ duel in Game 3.
Their bullpen has been nothing short of dominant, with Eduard Bazardo, Gabe Speier, Matt Brash, and Andrés Muñoz forming a lethal late-inning core that’s shut down opposing lineups all postseason.
Meanwhile, the Blue Jays have cooled off offensively, losing three of their last five games while hitting the under in three of those contests. Their bats have struggled to find rhythm against Seattle’s relentless arms.
Seattle’s bullpen has flat-out overpowered Toronto so far, turning every lead into a near-automatic win.
Considering the Mariners’ pitching strength and the Blue Jays’ recent offensive struggles, the under 7.5 stands out as the sharpest play tonight.
Both teams have leaned on their pitching, and this matchup projects to be another tight, low-scoring battle in the ALCS.
Today’s MLB Free Pick
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MLB Betting Tweet Of The Day
In 4 career Postseason appearances, George Kirby owns a 1.50 ERA (3 ER, 18.0 IP) with 20 strikeouts and 2 walks.
Kirby made his playoff debut on Oct. 8, 2022 against the Blue Jays, registering a save in his only career relief appearance. pic.twitter.com/b3cDH0nwVC
— Mariners PR (@MarinersPR) October 15, 2025
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