- The Mariners are -130 favorites vs the Rays
- Rays vs Mariners Over / Under today: 7.5 Runs
- Rays / Mariners TV Channel: FSUN | RTNW
The Tampa Bay Rays (+100) visit T-Mobile Park to take on the Seattle Mariners (-120) on Friday, August 8, 2025. First pitch is scheduled for 9:40pm EDT in Seattle, WA.
This season, the Rays are 57-59 against the spread (ATS), while the Mariners are 49-65 ATS.
Rays vs Mariners Starting Pitchers Today:
- Rays starting pitcher: Drew Rasmussen 9-5, 2.81 ERA
- Mariners starting pitcher: Luis Castillo 0-0, 7.05 ERA
Rays vs. Mariners Odds, Run Line, Over/Under & Moneyline
| Spread | Over / Under | Moneyline | |
| Rays | -1.5 +170 | O 7.5 -120 | +100 |
| Mariners | +1.5 -210 | U 7.5 +100 | -120 |
Rays vs Mariners Prediction for Today’s Game
Based on recent trends the model predicts the Mariners will win Friday‘s MLB game with 54.8% 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 Rays players for Friday‘s game, looking at profitable historical betting trends:
Best Rays Player Prop Bets Today:
- Josh Lowe has hit the Singles Under in 19 of his last 25 games (+11.20 Units / 34% ROI)
- Junior Caminero has hit the Hits Under in 16 of his last 25 away games (+10.85 Units / 28% ROI)
- Yandy Diaz has hit the Walks Under in 13 of his last 15 games (+9.05 Units / 29% ROI)
- Jonny Deluca has hit the Total Bases Over in his last 9 away games (+9.00 Units / 59% ROI)
- Chandler Simpson has hit the Runs Under in 15 of his last 20 games (+8.85 Units / 30% ROI)
And here are some favorite MLB player prop bets for Mariners players for Friday‘s game, looking at profitable historical betting trends:
Best Mariners Player Prop Best Bets Today:
- J.P. Crawford has hit the Home Runs Over in 2 of his last 6 games (+17.50 Units / 292% ROI)
- Eugenio Suarez has hit the Singles Under in 20 of his last 25 games at home (+12.35 Units / 32% ROI)
- Julio Rodriguez has hit the Total Bases Under in 18 of his last 25 games at home (+8.90 Units / 24% ROI)
- Julio Rodriguez has hit the Hits Under in 14 of his last 25 games at home (+8.80 Units / 25% ROI)
- J.P. Crawford has hit the Hits Runs and RBIs Over in 16 of his last 25 games at home (+8.45 Units / 31% ROI)
Rays Best Bets Today:
- The Tampa Bay Rays have hit the Game Total Under in 57 of their last 99 games (+16.60 Units / 15% ROI)
- The Tampa Bay Rays have hit the Team Total Under in 60 of their last 100 games (+14.80 Units / 13% ROI)
- The Tampa Bay Rays have covered the Run Line in 29 of their last 50 away games (+7.95 Units / 11% ROI)
- The Tampa Bay Rays have hit the 1st Five Innings (F5) Moneyline in 25 of their last 48 away games (+5.70 Units / 11% ROI)
- The Tampa Bay Rays have hit the 1st Five Innings (F5) Team Total Over in 25 of their last 43 away games (+5.10 Units / 10% ROI)
Mariners Best Bets Today:
- The Seattle Mariners have hit the Game Total Over in 58 of their last 104 games (+11.75 Units / 10% ROI)
- The Seattle Mariners have hit the Moneyline in 30 of their last 49 games (+8.35 Units / 12% ROI)
- The Seattle Mariners have hit the Team Total Under in 24 of their last 41 games at home (+4.75 Units / 10% ROI)
- The Seattle Mariners have hit the 1st Five Innings (F5) Moneyline in 9 of their last 17 games at home (+4.60 Units / 16% ROI)
- The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Under in 22 of their last 38 games (+4.20 Units / 9% ROI)
Rays Against the Spread (ATS) Record
Against the spread this season, the Rays are 52-62 against the Run Line (-12.9 Units / -8.73% ROI).
- 57-59 when betting on the Moneyline for -9.27 Units / -6.46% ROI
- 45-65 when betting on the total runs Over for -26.85 Units / -20.87% ROI
- 65-45 when betting on the total runs Under for +16.2 Units / 12.79% ROI
Mariners Against the Spread (ATS) Record
Against the spread this season, the Mariners are 49-65 against the Run Line (-16.4 Units / -11.77% ROI).
- 63-53 when betting on the Moneyline for -1.75 Units / -1.12% ROI
- 61-49 when betting on the total runs Over for +7.05 Units / 5.53% ROI
- 49-61 when betting on the total runs Under for -18.32 Units / -14.33% ROI
Mariners vs Rays Home Run Prop Bets Today
| Over | Under | |
|---|---|---|
| Cal Raleigh (SEA) | 0.5 +240 | 0.5 -295 |
| Junior Caminero (TB) | 0.5 +375 | 0.5 -500 |
| Eugenio Suarez (SEA) | 0.5 +400 | 0.5 -550 |
| Brandon Lowe (TB) | 0.5 +425 | 0.5 -600 |
| Randy Arozarena (SEA) | 0.5 +450 | 0.5 -650 |
Mariners vs Rays Total Hits Prop Bets Today
| Over | Under | |
|---|---|---|
| Yandy Diaz (TB) | 0.5 -250 | 0.5 +185 |
| Jake Mangum (TB) | 0.5 -235 | 0.5 +180 |
| Julio Rodriguez (SEA) | 0.5 -235 | 0.5 +180 |
| Brandon Lowe (TB) | 0.5 -210 | 0.5 +155 |
| Junior Caminero (TB) | 0.5 -200 | 0.5 +155 |
Mariners vs Rays RBI Prop Bets Today
| Over | Under | |
|---|---|---|
| Cal Raleigh (SEA) | 0.5 +140 | 0.5 -185 |
| Junior Caminero (TB) | 0.5 +155 | 0.5 -210 |
| Brandon Lowe (TB) | 0.5 +155 | 0.5 -210 |
| Yandy Diaz (TB) | 0.5 +165 | 0.5 -220 |
| Eugenio Suarez (SEA) | 0.5 +170 | 0.5 -220 |
Mariners vs Rays Strikeout Prop Bets Today
| Over | Under | |
|---|---|---|
| Luis Castillo (SEA) | 5.5 +110 | 5.5 -150 |
| Drew Rasmussen (TB) | 5.5 +125 | 5.5 -165 |
Rays Starting Pitcher Stats & Trends
Drew Rasmussen has thrown inside pitches 43% of the time (690/1,618) this season — highest in MLB among starting pitchers with at least 45 total IP; League Avg: 30% — 100th Percentile.
Drew Rasmussen has thrown inside pitches 52% of the time (479/914) vs left-handed batters this season — highest in MLB among starting pitchers with at least 45 total IP; League Avg: 31% — 100th Percentile.
Drew Rasmussen has thrown inside pitches 52% of the time (609/1,176) vs left-handed batters since last season — highest in MLB among starting pitchers with at least 110 total IP; League Avg: 31% — 100th Percentile.
Drew Rasmussen has thrown inside pitches 43% of the time (235/548) with two-strikes this season — 2nd highest in MLB among starting pitchers with at least 45 total IP; League Avg: 29% — 99th Percentile.
Mariners Starting Pitcher Stats & Trends
57% of Luis Castillo’s strikeouts are on pitches in the zone this season — 9th highest among qualified SPs in MLB; League Avg: 50% — 87th Percentile.
Luis Castillo has walked 4% of right-handed batters this season — tied for 5th best among qualified SPs in MLB; League Avg: 7% — 93rd Percentile.
Luis Castillo has thrown fastballs 72% of the time (780/1,082) against right-handed batters this season — 2nd highest among qualified SPs in MLB; League Avg: 50% — 98th Percentile.
Luis Castillo has thrown fastballs 66% of the time (3,318/5,045) since last season — highest among qualified SPs in MLB; League Avg: 48% — 100th Percentile.
Rays Keys to the Game vs. the Mariners
The Rays are 4-48 (.077) when trailing entering the 9th inning this season — 3rd best in MLB; League Avg: .042.
The Rays are just 12-19 (.387) when tied entering the 8th inning since last season — 3rd lowest in MLB; League Avg: .500.
The Rays are 37-6 (.860) when scoring 5 or more runs this season — 4th best in MLB; League Avg: .799.
The Rays are 16-175 (.083) when trailing entering the 9th inning since the 2023 season — best in MLB; League Avg: .048.
Mariners Keys to the Game vs. the Rays
The Mariners are 5-43 (.104) when trailing entering the 9th inning this season — best in MLB; League Avg: .042.
The Mariners are 24-15 (.615) vs the top 10 runs allowed teams this season They play the Rays (Ranks 10th runs allowed) today.
The Mariners are 122-3 (.976) when leading entering the 9th inning since last season — tied for 3rd best in MLB; League Avg: .952.
The Mariners are 47-2 (.959) when leading entering the 8th inning this season — tied for 2nd best in MLB; League Avg: .910.
Rays Hitting Stats & Trends
Rays hitters have an OBP of just .191 (278 PA’s) with two-strikes over the last 14 days — lowest in MLB; League Avg: .244.
Rays hitters are slugging just .381 against RHP since last season — 3rd lowest in MLB; League Avg: .403.
Rays hitters have an OPS of just .647 (1,328 PA’s) in innings 7-9 this season — 5th lowest in MLB; League Avg: .702.
Rays hitters are slugging just .199 with two-strikes over the last 14 days — tied for lowest in MLB; League Avg: .278.
Mariners Hitting Stats & Trends
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.
The Mariners are batting just .218 at home since last season — lowest in MLB; League Avg: .247.
The Mariners are batting just .227 when facing the starting pitcher for the 3rd time in a game since last season — lowest in MLB; League Avg: .260.
Mariners hitters are slugging .695 on the first pitch of at-bats this season — best in MLB; League Avg: .579.
Rays Pitching Stats & Trends
Rays pitchers have induced opposing hitters to ground into 93 double plays in 746 opportunities (12%) this season — tied for best in MLB; League Avg: 9%.
Batters facing the Rays pitchers have struck out on pitches in the zone 52% of the time since last season — 5th highest in MLB; League Avg: 50%. since last season — 5th highest in MLB; League Avg: 50%.
Rays pitchers have a strikeout rate of 43% with two-strikes since last season — tied for 5th best in MLB; League Avg: 42%.
Rays pitchers have a strikeout rate of 25% with runners in scoring position this season — best in MLB; League Avg: 21%.
Mariners Pitching Stats & Trends
Mariners pitchers have allowed an OBP of just .269 (2,494 PA’s) when facing the leadoff batter in the inning since last season — best in MLB; League Avg: .309.
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 allowed an OBP of just .251 (1,441 PA’s) when facing the leadoff batter in the inning in the 2024 season — best in MLB; League Avg: .305.
More MLB Reading:
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The content provided in this blog is intended for entertainment purposes only. All views and opinions expressed are the authors and reflect their individual perspectives on sports, betting, and related topics. This content should not be considered professional betting advice or the official views of BetMGM LLC. Please gamble responsibly. If you or someone you know is experiencing issues related to gambling, seek help from a licensed health professional. This blog is not liable for any losses, damages, or consequences resulting from betting activities.
