Mariners vs Reds Prediction, Odds & Player Prop Bets Today – MLB, Apr 17

Cincinnati Reds' Spencer Steer runs while flying out during the fourth inning of a baseball game against the Houston Astros, Friday, June 16, 2023, in Houston.
(AP Photo/Eric Christian Smith)
  • The Reds are -135 favorites vs the Mariners
  • Mariners vs Reds Over / Under today: 9 Runs
  • Mariners / Reds TV Channel: FDOH | RTNW

The Seattle Mariners (+115) visit Great American Ball Park to take on the Cincinnati Reds (-135) on Thursday, April 17, 2025. First pitch is scheduled for 12:40pm EDT in Cincinnati, OH.

This season, the Mariners are 9-9 against the spread (ATS), while the Reds are 11-7 ATS.

Mariners vs Reds Starting Pitchers Today:

  • Mariners starting pitcher: Emerson Hancock 0-1, 81.08 ERA
  • Reds starting pitcher: Brady Singer 3-0, 3.18 ERA

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

SpreadOver / UnderMoneyline
Mariners+1.5 -190O 9 -120+115
Reds -1.5 +155U 9 +100-135

Mariners vs Reds Prediction for Today’s Game

Based on recent trends the model predicts the Mariners will win Thursday‘s MLB game with 54.0% 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 Thursday‘s game, looking at profitable historical betting trends:

Best Mariners Player Prop Bets Today:

  • Cal Raleigh has hit the Home Runs Over in 5 of his last 9 games (+17.00 Units / 189% ROI)
  • Dylan Moore has hit the Runs Over in 8 of his last 10 away games (+10.20 Units / 100% ROI)
  • Rowdy Tellez has hit the Singles Under in his last 10 games (+10.00 Units / 48% ROI)
  • Cal Raleigh has hit the Hits Over in 13 of his last 15 away games (+9.75 Units / 36% ROI)
  • Jorge Polanco has hit the Total Bases Over in his last 9 away games (+9.00 Units / 65% ROI)

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

Best Reds Player Prop Best Bets Today:

  • Jose Trevino has hit the Hits Under in 19 of his last 25 games at home (+16.80 Units / 66% ROI)
  • Jose Trevino has hit the Total Bases Under in 19 of his last 25 games at home (+16.35 Units / 62% ROI)
  • Jose Trevino has hit the Hits Runs and RBIs Under in 20 of his last 25 games at home (+15.30 Units / 45% ROI)
  • Jose Trevino has hit the Singles Under in 21 of his last 25 games at home (+15.05 Units / 42% ROI)
  • Matt McLain has hit the Home Runs Over in 3 of his last 7 games at home (+10.60 Units / 151% ROI)
  • The Seattle Mariners have hit the Game Total Over in 46 of their last 80 away games (+14.20 Units / 16% ROI)
  • The Seattle Mariners have hit the Team Total Over in 8 of their last 12 games (+4.00 Units / 29% ROI)
  • The Cincinnati Reds have hit the Team Total Under in 95 of their last 163 games (+18.80 Units / 10% ROI)
  • The Cincinnati Reds have covered the Run Line in 93 of their last 163 games (+11.65 Units / 5% ROI)
  • The Cincinnati Reds have hit the Game Total Under in 86 of their last 163 games (+11.35 Units / 6% ROI)
  • The Cincinnati Reds have covered the 1st Five Innings (F5) Run Line in 7 of their last 8 games (+5.80 Units / 56% ROI)
  • The Cincinnati Reds have hit the 1st Five Innings (F5) Moneyline in 6 of their last 7 games (+4.95 Units / 52% ROI)

Mariners Against the Spread (ATS) Record

Against the spread this season, the Mariners are 9-9 against the Run Line (+0.95 Units / 4.19% ROI).

  • 9-9 when betting on the Moneyline for -2.15 Units / -9.11% ROI
  • 7-9 when betting on the total runs Over for -3 Units / -15.11% ROI
  • 9-7 when betting on the total runs Under for +1.3 Units / 6.57% ROI

Reds Against the Spread (ATS) Record

Against the spread this season, the Reds are 11-7 against the Run Line (+1.55 Units / 5.61% ROI).

  • 9-9 when betting on the Moneyline for +0 Units / 0% ROI
  • 7-10 when betting on the total runs Over for -3.9 Units / -19.65% ROI
  • 10-7 when betting on the total runs Under for +2.45 Units / 12.41% ROI

Reds vs Mariners Home Run Prop Bets Today

Over Under
Cal Raleigh (SEA) 0.5 +300 0.5 -375
Julio Rodriguez (SEA) 0.5 +360 0.5 -500
Elly De La Cruz (CIN) 0.5 +425 0.5 -600
Austin Hays (CIN) 0.5 +425 0.5 -600
Randy Arozarena (SEA) 0.5 +450 0.5 -625

Reds vs Mariners Total Hits Prop Bets Today

Over Under
Austin Hays (CIN) 0.5 -225 0.5 +170
Elly De La Cruz (CIN) 0.5 -210 0.5 +160
Cal Raleigh (SEA) 0.5 -190 0.5 +140
TJ Friedl (CIN) 0.5 -185 0.5 +140
Jorge Polanco (SEA) 0.5 -175 0.5 +135

Reds vs Mariners RBI Prop Bets Today

Over Under
Austin Hays (CIN) 0.5 +125 0.5 -160
Cal Raleigh (SEA) 0.5 +150 0.5 -200
Elly De La Cruz (CIN) 0.5 +160 0.5 -210
Julio Rodriguez (SEA) 0.5 +160 0.5 -220
Randy Arozarena (SEA) 0.5 +175 0.5 -235

Reds vs Mariners Strikeout Prop Bets Today

Over Under
Brady Singer (CIN) 5.5 -145 5.5 +110
Emerson Hancock (SEA) 3.5 -110 3.5 -118

No Matchup notes for this Game

Reds Starting Pitcher Stats & Trends

Brady Singer threw his slider 58% of the time (470/813) with two-strikes in the 2024 season — highest among among AL Starters; League Avg: 24% — 100th Percentile.

Brady Singer threw his slider 58% of the time (470/813) with two-strikes in the 2024 season — highest among qualified SPs in MLB; League Avg: 26% — 100th Percentile.

Brady Singer has thrown inside pitches 57% of the time (92/161) vs left-handed batters this season — 2nd highest in MLB among starting pitchers with at least 6 total IP; League Avg: 31% — 99th Percentile.

Brady Singer has walked 56 of 576 batters (10%) when going through the lineup the first time in a game since the 2023 season — 2nd highest among qualified SPs in MLB; League Avg: 7% — sixth Percentile.

Mariners Keys to the Game vs. the Reds

The Mariners are 1-7 (.125) when trailing entering the 9th inning this season — tied for 2nd best in MLB; League Avg: .025.

The Mariners are 157-3 (.981) when leading entering the 9th inning since the 2023 season — tied for best in MLB; League Avg: .950.

The Mariners were 58-5 (.921) when they scored 5 or more runs in the 2024 season — best in MLB; League Avg: .804.

The Mariners are 79-16 (.832) when they’ve had 10 or more hits since the 2023 season — 2nd best in MLB; League Avg: .740.

Reds Keys to the Game vs. the Mariners

The Reds were just 5-16 (.238) when tied entering the 8th inning in the 2024 season — lowest in MLB; League Avg: .500.

The Reds are just 14-27 (.341) when tied entering the 8th inning since the 2023 season — lowest in MLB; League Avg: .500.

The Reds are just 0-7 (.000) when trailing entering the 7th inning this season — tied for lowest in MLB; League Avg: .110.

The Reds are just 4-70 (.054) when trailing entering the 8th inning since last season — 3rd lowest in MLB; League Avg: .097.

The Mariners are batting just .204 when facing the starting pitcher for the 3rd time in a game since last season — lowest in MLB; League Avg: .262.

The Mariners are batting just .210 at home since last season — lowest in MLB; League Avg: .245.

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 .222 at home since the 2023 season — lowest in MLB; League Avg: .248.

Reds hitters are slugging just .149 on pitches out of the zone since last season — lowest in MLB; League Avg: .204.

The Reds are batting just .141 against LHP this season — 3rd lowest in MLB; League Avg: .227.

The Reds batted just .116 on pitches out of the zone in the 2024 season — lowest in MLB; League Avg: .150.

The Reds are batting just .253 on the first pitch of at-bats this season — 2nd lowest in MLB; League Avg: .341.

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 87 of 1,606 batters (5%) when facing the leadoff batter in the inning since last season — best in MLB; League Avg: 8%.

Mariners pitchers have walked 432 of 6,499 batters (7%) 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.

Opponents have a groundball rate of just 39% against Reds pitchers since the 2023 season — lowest in MLB; League Avg: 43%.

Opponents had a groundball rate of just 39% against Reds pitchers in 2023 — 2nd lowest in MLB; League Avg: 43%.

Opponents had a groundball rate of just 39% against Reds pitchers in the 2024 season — lowest in MLB; League Avg: 43%.

Reds pitchers have allowed an OBP of just .212 (160 PA’s) when facing the leadoff batter in the inning this season — best in MLB; League Avg: .313.

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.