Rangers vs Mariners Prediction, Odds & Player Prop Bets Today – MLB, Jul 31

Seattle Mariners left fielder Randy Arozarena throws to the infield during the third inning of a spring training baseball game against the Colorado Rockies Sunday, March 2, 2025, in Scottsdale, Ariz.
(AP Photo/Ross D. Franklin)
  • The Mariners are -180 favorites vs the Rangers
  • Rangers vs Mariners Over / Under today: 7.5 Runs
  • Rangers / Mariners TV Channel: RASN | RTNW

The Texas Rangers (+145) visit T-Mobile Park to take on the Seattle Mariners (-180) on Thursday, July 31, 2025. First pitch is scheduled for 9:40pm EDT in Seattle, WA, WA.

This season, the Rangers are 57-52 against the spread (ATS), while the Mariners are 45-62 ATS.

Rangers vs Mariners Starting Pitchers Today:

  • Rangers starting pitcher: Kumar Rocker 4-4, 5.77 ERA
  • Mariners starting pitcher: George Kirby 5-5, 4.50 ERA

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

SpreadOver / UnderMoneyline
Rangers+1.5 -150O 7.5 -102+145
Mariners -1.5 +125U 7.5 -118-180

Rangers vs Mariners Prediction for Today’s Game

Based on recent trends the model predicts the Mariners will win Thursday‘s MLB game with 58.6% confidence, factoring in game simulations, recent player performances, starting pitchers and injuries.


Bet now on Rangers vs Mariners and all games with BetMGM


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

Best Rangers Player Prop Bets Today:

  • Evan Carter has hit the Total Bases Over in 17 of his last 20 away games (+12.95 Units / 45% ROI)
  • Evan Carter has hit the Hits Over in 17 of his last 20 away games (+12.90 Units / 45% ROI)
  • Evan Carter has hit the Singles Over in 14 of his last 20 away games (+12.60 Units / 63% ROI)
  • Josh Jung has hit the Home Runs Over in 2 of his last 4 away games (+11.00 Units / 275% ROI)
  • Evan Carter has hit the Runs Over in 13 of his last 25 away games (+8.30 Units / 33% ROI)

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

Best Mariners Player Prop Best Bets Today:

  • Julio Rodriguez has hit the Home Runs Over in 4 of his last 7 games (+14.80 Units / 211% ROI)
  • Julio Rodriguez has hit the Total Bases Under in 16 of his last 20 games at home (+10.65 Units / 36% ROI)
  • Julio Rodriguez has hit the Hits Under in 12 of his last 20 games at home (+7.95 Units / 26% ROI)
  • George Kirby has hit the Strikeouts Under in 14 of his last 20 games (+7.65 Units / 32% ROI)
  • Julio Rodriguez has hit the Singles Under in 16 of his last 25 games (+7.05 Units / 27% ROI)
  • The Texas Rangers have hit the Team Total Over in 23 of their last 30 games (+15.65 Units / 43% ROI)
  • The Texas Rangers have hit the Game Total Under in 62 of their last 109 games (+11.95 Units / 10% ROI)
  • The Texas Rangers have covered the Run Line in 20 of their last 30 games (+9.75 Units / 24% ROI)
  • The Texas Rangers have hit the Moneyline in 28 of their last 45 games (+9.15 Units / 16% ROI)
  • The Texas Rangers have hit the 1st Five Innings (F5) Moneyline in 19 of their last 30 games (+8.90 Units / 22% ROI)
  • The Seattle Mariners have hit the Game Total Over in 54 of their last 97 games (+9.90 Units / 9% ROI)
  • The Seattle Mariners have hit the Team Total Under in 22 of their last 34 games at home (+9.05 Units / 23% ROI)
  • The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Under in 19 of their last 31 games (+6.20 Units / 17% ROI)
  • The Seattle Mariners have hit the Moneyline in 24 of their last 42 games (+3.45 Units / 6% ROI)
  • The Seattle Mariners have hit the 1st Five Innings (F5) Moneyline in 4 of their last 10 games at home (+2.70 Units / 19% ROI)

Rangers Against the Spread (ATS) Record

Against the spread this season, the Rangers are 58-50 against the Run Line (+2.25 Units / 1.58% ROI).

  • 57-52 when betting on the Moneyline for -1.3 Units / -0.94% ROI
  • 45-62 when betting on the total runs Over for -21.6 Units / -18.31% ROI
  • 62-45 when betting on the total runs Under for +11.95 Units / 9.8% ROI

Mariners Against the Spread (ATS) Record

Against the spread this season, the Mariners are 45-62 against the Run Line (-17.25 Units / -13.15% ROI).

  • 57-52 when betting on the Moneyline for -6.65 Units / -4.66% ROI
  • 57-47 when betting on the total runs Over for +5.2 Units / 4.34% ROI
  • 47-57 when betting on the total runs Under for -15.77 Units / -13.13% ROI

Mariners vs Rangers Home Run Prop Bets Today

Over Under
Cal Raleigh (SEA) 0.5 +250 0.5 -325
Eugenio Suarez (Sea) 0.5 +300 0.5 -400
Corey Seager (TEX) 0.5 +400 0.5 -525
Randy Arozarena (SEA) 0.5 +450 0.5 -625
Adolis Garcia (TEX) 0.5 +475 0.5 -650

Mariners vs Rangers Total Hits Prop Bets Today

Over Under
Julio Rodriguez (SEA) 0.5 -275 0.5 +195
J.P. Crawford (SEA) 0.5 -220 0.5 +165
Corey Seager (TEX) 0.5 -220 0.5 +165
Josh Naylor (SEA) 0.5 -210 0.5 +155
Marcus Semien (TEX) 0.5 -210 0.5 +160

Mariners vs Rangers RBI Prop Bets Today

Over Under
Cal Raleigh (SEA) 0.5 +125 0.5 -165
Eugenio Suarez (Sea) 0.5 +135 0.5 -185
Julio Rodriguez (SEA) 0.5 +175 0.5 -235
Corey Seager (TEX) 0.5 +180 0.5 -235
Adolis Garcia (TEX) 0.5 +185 0.5 -250

Mariners vs Rangers Strikeout Prop Bets Today

Over Under
Kumar Rocker (TEX) 4.5 -135 4.5 +105
George Kirby (SEA) 5.5 -130 5.5 +100

Opponents have a Hard-Hit Rate of 79% (22/28) against Kumar Rocker’s away fastballs this season — highest in MLB among starting pitchers with at least 42 total IP; League Avg: 54% — 0 Percentile.

Kumar Rocker has an ERA of 7.66 (22.1 IP) against division opponents this season — 8th highest in MLB among starting pitchers with at least 42 total IP; League Avg: 3.95 — seventh Percentile.

Left-handed batters are hitting .325 (41-for-126) against Kumar Rocker this season — 3rd highest in MLB among starting pitchers with at least 42 total IP; League Avg: .246 — second Percentile.

Opponents have a line drive rate of 33% (19/57) against Kumar Rocker with runners in scoring position this season — tied for 5th highest in MLB among starting pitchers with at least 42 total IP; League Avg: 24% — fourth Percentile.

Mariners Starting Pitcher Stats & Trends

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

George Kirby has walked 2% of right-handed batters since last season — best in MLB among starting pitchers with at least 107 total IP; League Avg: 7% — 100th Percentile.

Opponents are hitting just .067 (3-for-45) against George Kirby with two-strikes this month (4 games) — tied for 2nd best among among AL Starters; League Avg: .157 — 97th Percentile.

Rangers Keys to the Game vs. the Mariners

The Rangers are just 6-13 (.316) when tied entering the 7th inning this season — 3rd lowest in MLB; League Avg: .500.

The Rangers are just 3-29 (.094) when allowing 5 or more runs this season — 3rd lowest in MLB; League Avg: .199.

The Rangers are just 15-64 (.190) when allowing 10 or more hits since last season — 4th lowest in MLB; League Avg: .252.

The Rangers are just 5-22 (.185) when allowing 10 or more hits this season — 5th lowest in MLB; League Avg: .255.

Mariners Keys to the Game vs. the Rangers

The Mariners are 21-14 (.600) vs the top 10 runs allowed teams this season They play the Rangers (Ranks first runs allowed) today.

The Mariners are 97-14 (.874) when scoring 5 or more runs since last season — best in MLB; League Avg: .803.

The Mariners are 4-43 (.085) when trailing entering the 9th inning this season — 2nd best in MLB; League Avg: .041.

The Mariners are 16-98 (.140) when trailing entering the 8th inning since last season — tied for 4th best in MLB; League Avg: .095.

Rangers hitters have an OBP of just .219 (2,114 PA’s) with two-strikes this season — 3rd lowest in MLB; League Avg: .246.

Rangers hitters have an OPS of just .635 (1,095 PA’s) against LHP this season — 3rd lowest in MLB; League Avg: .694.

Rangers hitters have struck out in 32% of their PA’s against LHP over the last 14 days — 2nd highest in MLB; League Avg: 22%.

The Rangers are batting just .222 against LHP this season — 4th lowest in MLB; League Avg: .240.

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 are slugging .689 on the first pitch of at-bats this season — 2nd best in MLB; League Avg: .580.

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

The Mariners are batting just .224 at home this season — lowest in MLB; League Avg: .250.

Opponents have a groundball rate of just 34% against Rangers pitchers over the last 14 days — lowest in MLB; League Avg: 42%.

Opponents have a groundball rate of just 31% against Rangers pitchers over the past seven days (6 games) — lowest in MLB; League Avg: 41%.

Rangers pitchers have walked 15% of batters when facing the leadoff batter in the inning over the past seven days (6 games) — tied for highest in MLB; League Avg: 7%.

The Rangers have won just 5% of road games in which their opponents scored first this season — lowest in MLB; League Avg: 25%.

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%.

The Mariners pitchers have allowed division opponents to score first in just 31% of their games since last season — lowest in MLB; League Avg: 50%.

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

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

More MLB Reading:


Bet now on Rangers vs Mariners and all games with BetMGM


Bet on MLB Odds at BetMGM

Sportsbook promos are always available at BetMGM. For new customers, check out the sportsbook welcome offer and BetMGM Refer a Friend. For existing customers, there are Odds Boosts, Parlay Boosts, contests and more.

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.

About the Author Read More @BETMGM

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.