Mariners vs Tigers Prediction, Odds & Player Prop Bets Today – MLB, Jul 12

(AP Photo/Jeff Chiu)
  • The Mariners are +105 favorites vs the Tigers
  • Mariners vs Tigers Over / Under today: 7.5 Runs
  • Mariners / Tigers TV Channel: FDDT | RTNW | MLBN

The Seattle Mariners (+105) visit Comerica Park to take on the Detroit Tigers (-125) on Saturday, July 12, 2025. First pitch is scheduled for 1:10pm EDT in Detroit, MI, MI.

This season, the Mariners are 49-45 against the spread (ATS), while the Tigers are 51-44 ATS.

Mariners vs Tigers Starting Pitchers Today:

  • Mariners starting pitcher: George Kirby 3-4, 4.23 ERA
  • Tigers starting pitcher: Casey Mize 9-2, 2.63 ERA

Mariners vs. Tigers Odds, Run Line, Over/Under & Moneyline

SpreadOver / UnderMoneyline
Mariners-1.5 +170O 7.5 -102+105
Tigers +1.5 -210U 7.5 -118-125

Mariners vs Tigers Prediction for Today’s Game

Based on recent trends the model predicts the Tigers will win Saturday‘s MLB game with 52.6% confidence, factoring in game simulations, recent player performances, starting pitchers and injuries.


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We’ve highlighted some favorite MLB player prop bets for Mariners players for Saturday‘s game, looking at profitable historical betting trends:

Best Mariners Player Prop Bets Today:

  • Randy Arozarena has hit the Home Runs Over in 5 of his last 10 games (+18.40 Units / 184% ROI)
  • Julio Rodriguez has hit the Hits Under in 17 of his last 25 games (+12.25 Units / 29% ROI)
  • Cal Raleigh has hit the Singles Under in his last 10 games (+10.00 Units / 47% ROI)
  • George Kirby has hit the Strikeouts Under in 15 of his last 20 games (+9.95 Units / 41% ROI)
  • Randy Arozarena has hit the Runs Over in 16 of his last 25 games (+9.70 Units / 38% ROI)

And here are some favorite MLB player prop bets for Tigers players for Saturday‘s game, looking at profitable historical betting trends:

Best Tigers Player Prop Best Bets Today:

  • Colt Keith has hit the Home Runs Over in 3 of his last 9 games at home (+16.00 Units / 178% ROI)
  • Colt Keith has hit the Total Bases Over in 15 of his last 20 games at home (+10.35 Units / 37% ROI)
  • Colt Keith has hit the Hits Over in 16 of his last 20 games at home (+10.35 Units / 27% ROI)
  • Colt Keith has hit the Hits Runs and RBIs Over in 15 of his last 20 games at home (+10.05 Units / 44% ROI)
  • Parker Meadows has hit the Singles Over in 7 of his last 8 games (+8.65 Units / 108% ROI)
  • The Seattle Mariners have hit the Game Total Over in 48 of their last 82 games (+12.85 Units / 14% ROI)
  • The Seattle Mariners have hit the Team Total Over in 27 of their last 44 away games (+7.85 Units / 16% ROI)
  • The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Under in 11 of their last 16 games (+5.65 Units / 29% ROI)
  • The Seattle Mariners have hit the Moneyline in 16 of their last 27 games (+4.80 Units / 14% ROI)
  • The Seattle Mariners have hit the 1st Five Innings (F5) Moneyline in 4 of their last 8 games (+3.20 Units / 31% ROI)
  • The Detroit Tigers have hit the 1st Five Innings (F5) Team Total Over in 57 of their last 95 games (+18.60 Units / 17% ROI)
  • The Detroit Tigers have hit the Moneyline in 59 of their last 92 games (+15.50 Units / 11% ROI)
  • The Detroit Tigers have hit the 1st Five Innings (F5) Moneyline in 52 of their last 94 games (+12.55 Units / 8% ROI)
  • The Detroit Tigers have hit the Team Total Over in 56 of their last 95 games (+11.75 Units / 11% ROI)
  • The Detroit Tigers have covered the Run Line in 28 of their last 48 games at home (+8.75 Units / 15% ROI)

Mariners Against the Spread (ATS) Record

Against the spread this season, the Mariners are 39-53 against the Run Line (-16.1 Units / -13.95% ROI).

  • 49-45 when betting on the Moneyline for -5.3 Units / -4.3% ROI
  • 51-39 when betting on the total runs Over for +8.15 Units / 7.9% ROI
  • 39-51 when betting on the total runs Under for -17.17 Units / -16.55% ROI

Tigers Against the Spread (ATS) Record

Against the spread this season, the Tigers are 51-44 against the Run Line (+3.85 Units / 3.2% ROI).

  • 59-36 when betting on the Moneyline for +12.5 Units / 8.68% ROI
  • 48-43 when betting on the total runs Over for +1.35 Units / 1.3% ROI
  • 43-48 when betting on the total runs Under for -9.8 Units / -9.29% ROI

Tigers vs Mariners Home Run Prop Bets Today

Over Under
Cal Raleigh (SEA) 0.5 +260 0.5 -325
Spencer Torkelson (DET) 0.5 +450 0.5 -625
Riley Greene (DET) 0.5 +475 0.5 -650
Randy Arozarena (SEA) 0.5 +525 0.5 -750
Colt Keith (DET) 0.5 +575 0.5 -800

Tigers vs Mariners Total Hits Prop Bets Today

Over Under
Gleyber Torres (DET) 0.5 -275 0.5 +195
Wenceel Perez (DET) 0.5 -235 0.5 +175
J.P. Crawford (SEA) 0.5 -220 0.5 +165
Riley Greene (DET) 0.5 -220 0.5 +165
Zach McKinstry (DET) 0.5 -220 0.5 +165

Tigers vs Mariners RBI Prop Bets Today

Over Under
Cal Raleigh (SEA) 0.5 +125 0.5 -160
Riley Greene (DET) 0.5 +165 0.5 -220
Randy Arozarena (SEA) 0.5 +175 0.5 -235
Jorge Polanco (SEA) 0.5 +175 0.5 -225
Spencer Torkelson (DET) 0.5 +185 0.5 -250

Tigers vs Mariners Strikeout Prop Bets Today

Over Under
Casey Mize (DET) 4.5 -115 4.5 -115
George Kirby (SEA) 5.5 +115 5.5 -155

George Kirby has walked 2% of right-handed batters in the 2024 season — best among qualified SPs in MLB; League Avg: 6% — 100th Percentile.

George Kirby has allowed an OPS of just .311 (45 PA’s) in his last two starts — best in MLB over the last two weeks; League Avg: .711 — 100th Percentile.

George Kirby walked 3% of batters in the 2024 season — best among qualified SPs in MLB; League Avg: 7% — 100th Percentile.

George Kirby’s K:BB ratio was 7.8 (179/23) in the 2024 season — best among qualified SPs in MLB; League Avg: 3.4 — 100th Percentile.

Tigers Starting Pitcher Stats & Trends

Opponents are hitting just .184 (9-for-49) against Casey Mize in his last two starts — 10th best in MLB over the last two weeks; League Avg: .246 — 86th Percentile.

Opponents had a groundball rate of 55% (11/20) against Casey Mize in his last start — 7th highest in MLB over the last week; League Avg: 40% — 88th Percentile.

Casey Mize has allowed an OBP of just .236 (72 PA’s) with runners in scoring position this season — 8th best in MLB among starting pitchers with at least 37 total IP; League Avg: .315 — 94th Percentile.

Casey Mize has allowed a slugging percentage of just .326 (14 Total Bases / 43 ABs) when behind in the count this season — 5th best in MLB among starting pitchers with at least 37 total IP; League Avg: .584 — 96th Percentile.

Mariners Keys to the Game vs. the Tigers

The Mariners are 12-6 (.667) when tied entering the 7th inning this season — 5th best in MLB; League Avg: .500.

The Mariners are 37-2 (.949) when leading entering the 8th inning this season — tied for 4th best in MLB; League Avg: .906.

The Mariners are just 96-21 (.821) when leading entering the 7th inning since last season — 4th lowest in MLB; League Avg: .863.

The Mariners are 30-4 (.882) when they’ve had 5 or more XBH since last season — 5th best in MLB; League Avg: .804.

Tigers Keys to the Game vs. the Mariners

The Tigers are 51-10 (.836) when allowing 4 or fewer runs this season — best in MLB; League Avg: .705.

The Tigers were 13-55 (.191) when trailing entering the 8th inning in the 2024 season — best in MLB; League Avg: .100.

The Tigers are 59-36 (.621) this season — best in MLB; League Avg: .500.

The Tigers are 23-5 (.821) when they’ve scored in the first inning this season — best in MLB; League Avg: .632.

The Mariners batted just .207 when facing the starting pitcher for the 3rd time in a game in the 2024 season — lowest in MLB; League Avg: .263.

Mariners hitters have an OBP of .341 (1,979 PA’s) on the road this season — 2nd best in MLB; League Avg: .310.

The Mariners are batting just .218 at home since last season — lowest in MLB; League Avg: .247.

The Mariners are batting just .222 when facing the starting pitcher for the 3rd time in a game since last season — lowest in MLB; League Avg: .260.

Tigers hitters have chased 26% of pitches out of the zone against LHP this season — 2nd lowest in MLB; League Avg: 29%.

Tigers hitters have drawn walks in 10% of their PA’s against LHP this season — 3rd best in MLB; League Avg: 8%.

Tigers hitters are slugging .442 against LHP this season — 5th best in MLB; League Avg: .385.

Tigers hitters have an OBP of .337 (958 PA’s) against LHP this season — 4th best in MLB; League Avg: .309.

The Mariners pitchers have allowed division opponents to score first in just 30% of their games since last season — lowest in MLB; League Avg: 50%.

Mariners pitchers walked 76 of 1,441 batters (5%) when facing the leadoff batter in the inning in the 2024 season — best in MLB; League Avg: 7%.

Mariners pitchers have walked 6% of batters when facing the leadoff batter in the inning since last season — best in MLB; League Avg: 8%.

Mariners pitchers walked 369 of 5,801 batters (6%) in the 2024 season — best in MLB; League Avg: 8%.

Tigers pitchers have walked 7% of batters since last season — 3rd best in MLB; League Avg: 8%.

Tigers pitchers have an ERA of 3.58 (845.1 IP) this season — 4th best in MLB; League Avg: 4.09.

Opponents have a groundball rate of 44% against Tigers pitchers this season — 5th highest in MLB; League Avg: 42%.

Tigers pitchers have allowed innings of 3+ runs in 4% of innings played this season — lowest in MLB; League Avg: 5%.

More MLB Reading:


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Our BetMGM betting authors are experts who focus on individual game matchups & player prop bets with an emphasis on betting odds, lines & predictions.

Our BetMGM betting authors are experts who focus on individual game matchups & player prop bets with an emphasis on betting odds, lines & predictions.