Giants vs Mariners Prediction, Odds & Player Prop Bets Today – MLB, Jul 19

Seattle Mariners' Cal Raleigh walks to first base during the third inning of a baseball game against the Chicago Cubs in Chicago, Sunday, June 22, 2025.
(AP Photo/Nam Y. Huh)
PromosNew Player Offer
  • The Mariners are -185 favorites vs the Giants
  • Giants vs Mariners Over / Under today: 7.5 Runs
  • Giants / Mariners TV Channel: NSBA | MRTV

The San Francisco Giants (+150) visit T-Mobile Park to take on the Seattle Mariners (-185) on July 19, 2026. First pitch is scheduled for 4:10 pm in Seattle, WA.

This season, the Giants are 42-56 against the spread (ATS), while the Mariners are 39-60 ATS.

Giants vs Mariners Starting Pitchers Today:

  • Giants starting pitcher: Robbie Ray 8-6, 3.39 ERA
  • Mariners starting pitcher: Logan Gilbert 7-6, 3.31 ERA

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

SpreadOver / UnderMoneyline
Giants+1.5 -150O 7.5 -118+150
Mariners -1.5 +125U 7.5 -102-185

Giants vs Mariners Prediction for Today’s Game

Based on recent trends the model predicts the Mariners will win Sunday‘s MLB game with 62.7% confidence, factoring in game simulations, recent player performances, starting pitchers and injuries.


Bet now on Giants vs Mariners and all games with BetMGM


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

Best Giants Player Prop Bets Today:

  • Willy Adames has hit the Home Runs Over in 4 of his last 10 away games (+14.50 Units / 145% ROI)
  • Jung Hoo Lee has hit the Runs Over in 16 of his last 25 away games (+11.84 Units / 46% ROI)
  • Bryce Eldridge has hit the Total Bases Over in 16 of his last 25 away games (+9.10 Units / 32% ROI)
  • Luis Arraez has hit the Singles Over in 18 of his last 25 away games (+8.60 Units / 20% ROI)
  • Jung Hoo Lee has hit the Hits Runs and RBIs Over in 17 of his last 25 away games (+7.40 Units / 24% ROI)

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

Best Mariners Player Prop Best Bets Today:

  • Cole Young has hit the Home Runs Over in 3 of his last 8 games (+18.00 Units / 225% ROI)
  • J.P. Crawford has hit the Hits Runs and RBIs Under in 20 of his last 25 games at home (+13.60 Units / 42% ROI)
  • Cole Young has hit the Runs Over in 10 of his last 15 games (+12.50 Units / 83% ROI)
  • Cal Raleigh has hit the Total Bases Under in 13 of his last 15 games at home (+11.75 Units / 62% ROI)
  • J.P. Crawford has hit the Singles Under in 19 of his last 25 games at home (+11.60 Units / 38% ROI)
  • The San Francisco Giants have hit the Team Total Under in 31 of their last 50 away games (+10.10 Units / 18% ROI)
  • The San Francisco Giants have hit the 1st Five Innings (F5) Team Total Under in 22 of their last 35 games (+6.55 Units / 15% ROI)
  • The San Francisco Giants have covered the Run Line in 11 of their last 17 games (+5.90 Units / 27% ROI)
  • The San Francisco Giants have hit the Game Total Over in 12 of their last 24 away games (+5.40 Units / 20% ROI)
  • The San Francisco Giants have covered the 1st Five Innings (F5) Run Line in 12 of their last 18 away games (+4.70 Units / 22% ROI)
  • The Seattle Mariners have hit the Team Total Under in 27 of their last 40 games (+12.80 Units / 28% ROI)
  • The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Under in 20 of their last 30 games at home (+9.45 Units / 26% ROI)
  • The Seattle Mariners have hit the Moneyline in 15 of their last 21 games at home (+7.05 Units / 23% ROI)
  • The Seattle Mariners have hit the Game Total Over in 8 of their last 15 games (+3.55 Units / 21% ROI)
  • The Seattle Mariners have covered the Run Line in 8 of their last 16 games at home (+2.45 Units / 14% ROI)

Giants Against the Spread (ATS) Record

Against the spread this season, the Giants are 46-51 against the Run Line (-17.3 Units / -12.79% ROI).

  • 42-56 when betting on the Moneyline for -12.65 Units / -11.55% ROI
  • 44-44 when betting on the total runs Over for -4.65 Units / -4.29% ROI
  • 44-44 when betting on the total runs Under for -4.35 Units / -4.05% ROI

Mariners Against the Spread (ATS) Record

Against the spread this season, the Mariners are 39-60 against the Run Line (-12.7 Units / -11.81% ROI).

  • 49-50 when betting on the Moneyline for -15.55 Units / -11.52% ROI
  • 47-46 when betting on the total runs Over for -3.4 Units / -3.11% ROI
  • 46-47 when betting on the total runs Under for -5.45 Units / -5.01% ROI

Mariners vs Giants Home Run Prop Bets Today

Yes
Rafael Devers +325
Julio Rodriguez +340
Cal Raleigh +340
Randy Arozarena +340
Willy Adames +375

Mariners vs Giants Total Hits Prop Bets Today

Over Under
Randy Arozarena 0.5 -220 0.5 +160
Julio Rodriguez 0.5 -210 0.5 +155
Casey Schmitt 0.5 -190 0.5 +140
Jung Hoo Lee 0.5 -190 0.5 +140
Heliot Ramos 0.5 -185 0.5 +135

Mariners vs Giants Strikeout Prop Bets Today

Over Under
Heliot Ramos 0.5 -275 0.5 +195
Casey Schmitt 0.5 -235 0.5 +175
Daniel Susac 0.5 -235 0.5 +175
Weston Wilson 0.5 -210 0.5 +150
Julio Rodriguez 0.5 -200 0.5 +145

Giants Keys to the Game vs. the Mariners

The Giants are just 32-10 (.762) when leading entering the 7th inning this season — 2nd lowest in MLB; League Avg: .864.

The Giants are just 1-40 (.024) when trailing entering the 7th inning this season — lowest in MLB; League Avg: .136.

The Giants are just 7-11 (.389) vs bottom 10 scoring offenses this season Today, they face the Mariners (28th in runs scored).

The Giants are just 37-8 (.822) when leading entering the 8th inning this season — 4th lowest in MLB; League Avg: .902.

Mariners Keys to the Game vs. the Giants

The Mariners are just 13-26 (.333) vs bottom 10 scoring offenses this season Today, they face the Giants (24th in runs scored).

The Mariners are just 1-40 (.024) when trailing entering the 8th inning this season — 3rd lowest in MLB; League Avg: .098.

The Mariners are just 1-44 (.022) when trailing entering the 9th inning this season — 3rd lowest in MLB; League Avg: .053.

The Mariners are just 13-26 (.333) vs bottom 10 scoring offenses since the 2025 season Today, they face the Giants (24th in runs scored).

The Giants are batting .186 with two-strikes this season — 2nd best in MLB.

The Giants are batting .258 with two outs this season — 2nd best in MLB.

Giants hitters have drawn walks in 7% of their PA’s this season — lowest in MLB.

Giants hitters are slugging .438 on the road this season — 2nd best in MLB.

Mariners hitters have an OPS of just .630 (1,018 PA’s) against LHP this season — lowest in MLB.

Mariners hitters are slugging just .333 against LHP this season — lowest in MLB.

Mariners hitters have an OPS of just .650 (1,163 PA’s) in innings 7-9 this season — 2nd lowest in MLB.

The Mariners are batting just .294 on the first pitch of at-bats this season — 2nd lowest in MLB.

Opponents have a groundball rate of 46% against Giants pitchers this season — tied for highest in MLB.

Opponents have a miss rate of just 23% against Giants pitchers this season — 5th lowest in MLB.

Giants pitchers have thrown at least two strikes in their first three pitches to 58% of opposing batters this season — lowest in MLB.

Giants pitchers have won only 16% of games in which they have allowed their opponent to score in three different innings this season — 2nd lowest in MLB.

Mariners pitchers have walked 7% of batters this season — best in MLB.

Mariners pitchers have walked 6% of batters when facing the leadoff batter in the inning this season — best in MLB.

Mariners pitchers have a first-pitch strike rate of 66% this season — highest in MLB.

Mariners pitchers have thrown at least two strikes in their first three pitches to 69% of opposing batters this season — highest in MLB.

More MLB Reading:


Bet now on Giants 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.