George Springer can do no wrong at the plate right now, so I'm rocking with one of the hottest bats in baseball as part of my Mariners vs. Blue Jays prediction.
The Toronto Blue Jays host the Seattle Mariners for their series finale as a +120 underdog at BET99. Can they close the 1.5-game gap in the Wild Card race?
Let’s dive into my MLB picks for Sunday, Aug. 30, and win another same-game parlay.
Mariners vs Blue Jays predictions
Mariners vs Blue Jays best bet: George Springer Over 1.5 hits + runs + RBI
George Springer owns an .839 OPS in August for the Toronto Blue Jays and has played a huge role in their run to the Wild Card. He's registered eight hits (two homers, two extra-base hits) over his last four games and is on another level right now.
Against Seattle Mariners starter Logan Gilbert, he's 5-for-18 with a double, triple, and homer — that'll play for us today.
He's cashed this bet in three straight games, and he's in line to make it four straight this afternoon.
I'd play this to -130.
COVERS INTEL: Struggling with the long ball? The Mariners' ace comes into the matinee coughing up six homers in his last five starts. Toronto needs to capitalize when he elevates his four-seamer today — hitters own a .501 xSLG against his heater.
Mariners vs Blue Jays same-game parlay (SGP)
Springer owns strong numbers in this matchup, and so does Vladimir Guerrero Jr., who's 7-for-23 (.322 xBA) with two doubles and three homers against Gilbert, while rocking an astronomical .690 xSLG.
With these two dominating Gilbert and a strong performance from Max Scherzer, we shouldn't have an issue keeping this one close.
Mariners vs Blue Jays SGP
- Blue Jays +1.5
- George Springer Over 1.5 hits + runs + RBI
- Vladimir Guerrero Jr. Over 1.5 hits + runs + RBI
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Regulated Alberta sports betting has officially launched, allowing sportsbooks to operate under provincial oversight.
You can sign up and join BET99 — one of the best Alberta betting apps — now to get in on the Blue Jays action!
Mariners vs Blue Jays home run pick: Vladimir Guerrero Jr. (+575)
Today could very well be the day Vladdy hits his first home run at home. He's hit three off Gilbert in his career already (he owns an average exit velocity of 98 MPH in this matchup), and owns a .721 OPS during day games.
Let's give our guy one more chance to climb out of this hole.
- Best bets: 8-9, +1.77 units
- SGPs: 3-14, -0.95 units
Mariners vs Blue Jays odds
- Moneyline: Mariners (-140) | Blue Jays (+120)
- Run line: Mariners -1.5 (+120) | Blue Jays +1.5 (-140)
- Over/Under: Over 8 (-110) | Under 8 (-110)
Mariners vs Blue Jays trend
The Under is 7-1 in the Blue Jays' last eight games as a home underdog. Find more MLB betting trends for Mariners vs. Blue Jays.
How to watch Mariners vs Blue Jays and game info
| Location | Rogers Centre, Toronto, ON |
| Date | Sunday, Aug. 30, 2026 |
| First pitch | 1:37 p.m. ET |
| TV | Mariners.TV, SN |
| Mariners starting pitcher | Logan Gilbert (11-7, 3.36 ERA) |
| Blue Jays starting pitcher | Max Scherzer (1-7, 7.02 ERA) |
Mariners vs Blue Jays latest injuries
Mariners vs Blue Jays weather
Odds are correct at the time of publishing and are subject to change.
Not intended for use in MA.
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