Guardians vs Mariners Prediction, Odds & Player Prop Bets Today – MLB, Mar 28

New Player OfferMLB Betting Promo
  • The Mariners are -190 favorites vs the Guardians
  • Guardians vs Mariners Over / Under today: 7 Runs
  • Guardians / Mariners TV Channel: GDTV | MRTV | MLBN

The Cleveland Guardians (+155) visit T-Mobile Park to take on the Seattle Mariners (-190) on March 28, 2026. First pitch is scheduled for 9:40 pm in Seattle, WA.

This season, the Guardians are 1-1 against the spread (ATS), while the Mariners are 1-1 ATS.

Guardians vs Mariners Starting Pitchers Today:

  • Guardians starting pitcher: Joey Cantillo 0-0, 0.00 ERA
  • Mariners starting pitcher: Bryan Woo 0-0, 0.00 ERA

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

SpreadOver / UnderMoneyline
Guardians+1.5 -145O 7 -115+155
Mariners -1.5 +120U 7 -105-190

Guardians vs Mariners Prediction for Today’s Game

Based on recent trends the model predicts the Mariners will win Saturday‘s MLB game with 59.7% confidence, factoring in game simulations, recent player performances, starting pitchers and injuries.


Bet now on Guardians vs Mariners and all games with BetMGM


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

Best Guardians Player Prop Bets Today:

  • Brayan Rocchio has hit the Home Runs Over in 2 of his last 6 games (+19.00 Units / 317% ROI)
  • Steven Kwan has hit the Runs Under in 18 of his last 25 away games (+8.20 Units / 21% ROI)
  • Kyle Manzardo has hit the Hits Runs and RBIs Under in 14 of his last 20 games (+7.85 Units / 34% ROI)
  • Kyle Manzardo has hit the Total Bases Under in 13 of his last 20 games (+7.15 Units / 28% ROI)
  • Steven Kwan has hit the Hits Under in 7 of his last 10 games (+7.05 Units / 49% ROI)

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

Best Mariners Player Prop Best Bets Today:

  • Luke Raley has hit the Home Runs Over in his last 2 games (+15.50 Units / 775% ROI)
  • Josh Naylor has hit the Singles Over in 17 of his last 25 games (+9.35 Units / 34% ROI)
  • Leonardo Rivas has hit the Runs Under in his last 9 games (+9.00 Units / 38% ROI)
  • Cal Raleigh has hit the RBIs Under in 16 of his last 20 games at home (+9.00 Units / 25% ROI)
  • Josh Naylor has hit the Total Bases Over in 16 of his last 25 games (+8.55 Units / 27% ROI)
  • The Cleveland Guardians have hit the Moneyline in 49 of their last 77 games (+21.25 Units / 23% ROI)
  • The Cleveland Guardians have hit the Game Total Under in 39 of their last 60 away games (+18.30 Units / 28% ROI)
  • The Cleveland Guardians have covered the Run Line in 38 of their last 57 away games (+17.05 Units / 21% ROI)
  • The Cleveland Guardians have covered the 1st Five Innings (F5) Run Line in 33 of their last 50 away games (+14.05 Units / 23% ROI)
  • The Cleveland Guardians have hit the Team Total Under in 90 of their last 162 games (+9.19 Units / 5% ROI)
  • The Seattle Mariners have hit the Game Total Over in 92 of their last 162 games (+19.65 Units / 11% ROI)
  • The Seattle Mariners have hit the Moneyline in 38 of their last 54 games at home (+16.75 Units / 19% ROI)
  • The Seattle Mariners have covered the 1st Five Innings (F5) Run Line in 28 of their last 44 games (+9.65 Units / 18% ROI)
  • The Seattle Mariners have covered the Run Line in 21 of their last 33 games (+9.30 Units / 22% ROI)
  • The Seattle Mariners have hit the 1st Five Innings (F5) Moneyline in 25 of their last 44 games (+7.65 Units / 11% ROI)

Guardians Against the Spread (ATS) Record

Against the spread this season, the Guardians are 1-1 against the Run Line (-0.5 Units / -16.95% ROI).

  • 1-1 when betting on the Moneyline for +0.55 Units / 27.5% ROI
  • 1-1 when betting on the total runs Over for -0.05 Units / -2.27% ROI
  • 1-1 when betting on the total runs Under for -0.05 Units / -2.27% ROI

Mariners Against the Spread (ATS) Record

Against the spread this season, the Mariners are 1-1 against the Run Line (+0.3 Units / 15% ROI).

  • 1-1 when betting on the Moneyline for -0.8 Units / -22.86% ROI
  • 1-1 when betting on the total runs Over for -0.05 Units / -2.27% ROI
  • 1-1 when betting on the total runs Under for -0.05 Units / -2.27% ROI

Mariners vs Guardians Home Run Prop Bets Today

Yes
Cal Raleigh (SEA) +270
Julio Rodriguez (SEA) +425
Chase DeLauter (CLE) +525
Randy Arozarena (SEA) +525
Jose Ramirez (CLE) +550

Mariners vs Guardians Total Hits Prop Bets Today

Over Under
Julio Rodriguez (SEA) 0.5 -235 0.5 +175
Steven Kwan (CLE) 0.5 -210 0.5 +160
Brendan Donovan (SEA) 0.5 -210 0.5 +155
Jose Ramirez (CLE) 0.5 -175 0.5 +135
Josh Naylor (SEA) 0.5 -175 0.5 +130

Mariners vs Guardians RBI Prop Bets Today

Over Under
Cal Raleigh (SEA) 0.5 +145 0.5 -190
Julio Rodriguez (SEA) 0.5 +175 0.5 -235
Josh Naylor (SEA) 0.5 +200 0.5 -275
Randy Arozarena (SEA) 0.5 +210 0.5 -295
Jose Ramirez (CLE) 0.5 +210 0.5 -295

Mariners vs Guardians Strikeout Prop Bets Today

Over Under
Bryan Woo (SEA) 5.5 -155 5.5 +120
Joey Cantillo (CLE) 5.5 +110 5.5 -145

Guardians Keys to the Game vs. the Mariners

The Guardians were 33-4 (.868) when they had 10 or more hits in the 2025 season — 2nd best in MLB; League Avg: .743.

The Guardians were 66-5 (.930) when leading entering the 7th inning in the 2025 season — 2nd best in MLB; League Avg: .875.

The Guardians were 69-4 (.945) when leading entering the 8th inning in the 2025 season — 4th best in MLB; League Avg: .909.

The Guardians were 12-6 (.667) when tied entering the 8th inning in the 2025 season — tied for 3rd best in MLB; League Avg: .500.

Mariners Keys to the Game vs. the Guardians

The Mariners were 9-55 (.141) when trailing entering the 8th inning in the 2025 season — 3rd best in MLB; League Avg: .090.

The Mariners were 5-59 (.078) when trailing entering the 9th inning in the 2025 season — 5th best in MLB; League Avg: .043.

The Mariners were 18-10 (.643) when tied entering the 7th inning in the 2025 season — 4th best in MLB; League Avg: .500.

The Mariners were 12-55 (.179) when trailing entering the 7th inning in the 2025 season — 3rd best in MLB; League Avg: .124.

The Guardians batted just .226 in the 2025 season — 2nd lowest in MLB.

The Guardians batted just .223 against LHP in the 2025 season — 3rd lowest in MLB.

Guardians hitters had an OPS of just .545 (690 PA’s) in righty-righty matchups in the 2025 season — lowest in MLB.

The Guardians batted just .186 in righty-righty matchups in the 2025 season — lowest in MLB.

Mariners hitters slugged .712 on the first pitch of at-bats in the 2025 season — best in MLB.

Mariners hitters had an OBP of .332 (3,230 PA’s) on the road in the 2025 season — 3rd best in MLB.

Mariners hitters slugged .444 on the road in the 2025 season — 2nd best in MLB.

The Mariners are batting just .226 when facing the starting pitcher for the 3rd time in a game since the 2024 season — lowest in MLB.

Opponents had a chase percentage of just 26% against the Guardians pitchers in the 2025 season — lowest in MLB.

Guardians pitchers had an ERA of 3.72 (706.0 IP) on the road in the 2025 season — tied for best in MLB.

Guardians pitchers had a strikeout rate of 23% with runners in scoring position in the 2025 season — 5th best in MLB.

Guardians pitchers had allowed a run just 25% of the time after their offense scored in the 2025 season — lowest in MLB.

The Mariners pitchers have allowed division opponents to score first in just 30% of their games since the 2024 season — lowest in MLB.

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 7% of batters since the 2024 season — best in MLB.

Mariners pitchers have allowed an OBP of just .267 (2,919 PA’s) when facing the leadoff batter in the inning since the 2024 season — best in MLB.

More MLB Reading:


Bet now on Guardians 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.