Guardians vs Mariners Prediction, Odds & Player Prop Bets Today – MLB, Mar 31

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MLB betting odds, predictions and betting odds for today's games
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BetMGM Betting @BETMGM Mar 31, 2023, 3:30 PM
  • The Mariners are -165 favorites vs the Guardians
  • Guardians starting pitcher: Hunter Gaddis
  • Mariners starting pitcher: Robert Ray
  • Watch the game on MLB Network

The Cleveland Guardians (+140) visit T-Mobile Park to take on the Seattle Mariners (-165) on Friday, March 31, 2023. First pitch is scheduled for 10:10pm EDT in Seattle.

The Mariners are the betting favorite in this game, with the run line sitting at -1.5 (+125).

The Guardians vs Mariners Over/Under is 7.5 total runs for the game.

This season, the Guardians are 0-1 against the spread (ATS), while the Mariners are 1-0 ATS.

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

SpreadOver / UnderMoneyline
Guardians+1.5 -150O 7.5 +100+140
Mariners -1.5 +125U 7.5 -120-165

Guardians vs Mariners Prediction for Today’s Game

Based on recent trends the model predicts the Mariners will win Friday‘s MLB matchup with 68.9% confidence.

This prediction factors in starting pitchers, recent team and player hitting performances, the last 5 games for both the Guardians and Mariners and up-to-date player 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 Friday‘s game, looking at profitable historical betting trends:

Best Guardians Player Prop Bets Today:

  • Oscar Gonzalez has hit the Runs Under in his last 3 games (+3.00 Units / 39% ROI)
  • Owen Miller has hit the Hits Runs and RBIs Under in his last 2 games (+2.30 Units / 78% ROI)
  • Richie Palacios has hit the Runs Under in his last 2 games (+2.00 Units / 35% ROI)
  • Luke Maile has hit the Runs Under in his last 2 games (+2.00 Units / 41% ROI)
  • Will Benson has hit the Singles Under in his last 2 away games (+2.00 Units / 39% 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:

  • Mitch Haniger has hit the Hits Runs and RBIs Over in 4 of his last 5 games (+3.40 Units / 54% ROI)
  • Dylan Moore has hit the Singles Over in his last 2 games at home (+3.25 Units / 162% ROI)
  • Dylan Moore has hit the Runs Over in his last 2 games at home (+3.00 Units / 150% ROI)
  • Jarred Kelenic has hit the Runs Under in his last 3 games at home (+3.00 Units / 45% ROI)
  • Taylor Trammell has hit the Runs Under in his last 3 games at home (+3.00 Units / 40% ROI)

Mariners vs Guardians Home Run Prop Bets Today

Over Under
Teoscar Hernandez 0.5 +260 0.5 -400
Tommy La Stella 0.5 +625 0.5 -2000
J.P. Crawford 0.5 +775 0.5 -3000
Eugenio Suarez 0.5 +320 0.5 -550
Kolten Wong 0.5 +500 0.5 -1100

Mariners vs Guardians Total Hits Prop Bets Today

Over Under
Teoscar Hernandez 0.5 -275 0.5 +185
Tommy La Stella 0.5 -150 0.5 +105
J.P. Crawford 0.5 -150 0.5 +105
Eugenio Suarez 0.5 -155 0.5 +110
Kolten Wong 0.5 -200 0.5 +140

Mariners vs Guardians RBI Prop Bets Today

Over Under
Teoscar Hernandez 0.5 +120 0.5 -165
Tommy La Stella 0.5 +240 0.5 -375
J.P. Crawford 0.5 +270 0.5 -450
Eugenio Suarez 0.5 +165 0.5 -250
Kolten Wong 0.5 +200 0.5 -300

Mariners vs Guardians Strikeout Prop Bets Today

Over Under
Robbie Ray 5.5 -110 5.5 -120
  • The Cleveland Guardians have hit the Moneyline in 96 of their last 170 games (+20.15 Units / 9% ROI)
  • The Cleveland Guardians have hit the 1st Five Innings (F5) Moneyline in 23 of their last 38 away games (+17.75 Units / 40% ROI)
  • The Cleveland Guardians have covered the 1st Five Innings (F5) Run Line in 28 of their last 41 away games (+15.15 Units / 32% ROI)
  • The Cleveland Guardians have covered the Run Line in 48 of their last 85 away games (+6.90 Units / 6% ROI)
  • The Cleveland Guardians have hit the Team Total Over in 22 of their last 38 away games (+3.98 Units / 9% ROI)
  • The Seattle Mariners have hit the Team Total Under in 37 of their last 61 games at home (+11.00 Units / 15% ROI)
  • The Seattle Mariners have hit the Game Total Under in 46 of their last 83 games at home (+10.55 Units / 11% ROI)
  • The Seattle Mariners have covered the 1st Five Innings (F5) Run Line in 50 of their last 87 games (+4.85 Units / 5% ROI)
  • The Seattle Mariners have hit the Moneyline in 93 of their last 168 games (+4.85 Units / 2% ROI)
  • The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Over in 5 of their last 7 games (+3.40 Units / 41% ROI)

Guardians Against the Spread (ATS) Record

Against the spread this MLB season, the Guardians have gone 0-1 against the Run Line (-1 Units / -100% ROI).

  • 0-1 when betting on the Moneyline for -1 Units / -100% ROI
  • 0-1 when betting on the total runs Over for -1.1 Units / -100% ROI
  • 1-0 when betting on the total runs Under for +1 Units / 90.91% ROI

Mariners Against the Spread (ATS) Record

Against the spread this MLB season, the Mariners have gone 1-0 against the Run Line (+1 Units / 44.44% ROI).

  • 1-0 when betting on the Moneyline for +1 Units / 83.33% ROI
  • 0-1 when betting on the total runs Over for -1.1 Units / -100% ROI
  • 1-0 when betting on the total runs Under for +1 Units / 90.91% ROI

Hunter Gaddis has limited playing time.

Mariners Starting Pitcher Stats & Trends

Robbie Ray has had third base stolen on him 11 times since the start of last season — most in MLB — 100th Percentile.

Robbie Ray located 45% of his pitches inside (436/976) with two-strikes in 2022 — 2nd highest among qualified SPs in MLB; League Avg: 31% — 97th Percentile.

Robbie Ray has thrown inside pitches 49% of the time (597/1,207) with runners in scoring position since the start of last season — highest among qualified SPs in MLB; League Avg: 34% — 100th Percentile.

Robbie Ray has thrown inside pitches 47% of the time (953/2,009) with two-strikes since the start of last season — highest among qualified SPs in MLB; League Avg: 31% — 100th Percentile.

Guardians Keys to the Game vs. the Mariners

The Guardians were 16-57 (.219) when trailing entering the 7th inning in 2022 — best in MLB; League Avg: .118.

The Guardians were 18-37 (.327) when allowing 5 or more runs in 2022 — tied for 2nd best in MLB; League Avg: .195.

The Guardians were 12-60 (.167) when trailing entering the 8th inning in 2022 — 2nd best in MLB; League Avg: .085.

The Guardians are 79-20 (.798) when totaling 10 or more hits since the 2021 season — tied for 7th best in MLB; League Avg: .733.

Mariners Keys to the Game vs. the Guardians

The Mariners are 33-11 (.750) when tied entering the 8th inning since the 2021 season — best in MLB; League Avg: .500.

The Mariners were 26-23 (.531) vs the 10 runs allowed teams in 2022 — 3rd best in MLB; League Avg: .402.

The Mariners were 68-1 (.986) when leading entering the 8th inning in 2022 — best in MLB; League Avg: .915.

The Mariners are 99-91 (.521) when underdogs since the 2021 season — 3rd best in MLB; League Avg: .406.

Guardians hitters struck out just 795 times in 4,584 PA’s (17%) against RHP in 2022 — best in MLB; League Avg: 22%.

Guardians hitters struck out just 1,122 times in 6,163 PA’s (18%) in 2022 — best in MLB; League Avg: 22%.

Guardians hitters missed on just 21% of swings in 2022 — best in MLB; League Avg: 26%.

Guardians hitters put 40% of their swings in play in 2022 — highest in MLB; League Avg: 37%.

Mariners hitters are slugging just .168 on pitches out of the zone since the start of last season — 2nd lowest in MLB; League Avg: .210.

Mariners hitters are slugging just .171 on pitches out of the zone since the 2020 season — 3rd lowest in MLB; League Avg: .210.

The Mariners are batting just .218 at home since the 2020 season — lowest in MLB; League Avg: .247.

Mariners hitters drew 190 walks in 1,781 PA’s (11%) against LHP in 2022 — best in MLB; League Avg: 8%.

The Guardians pitchers allowed their opponents to score first in just 35% of their games on the road in 2022 — 2nd lowest in MLB; League Avg: 46%.

Guardians pitchers walked 88 of 1,460 batters (6%) when facing the leadoff batter in the inning in 2022 — 3rd best in MLB; League Avg: 7%.

Guardians pitchers walked 435 of 5,989 batters (7%) in 2022 — tied for 5th best in MLB; League Avg: 8%.

Guardians pitchers had an ERA of 3.30 (686.1 IP) against division opponents in 2022 — 3rd best in MLB; League Avg: 4.00.

Opponents have a groundball rate of just 41% against Mariners pitchers since the start of last season — tied for lowest in MLB; League Avg: 43%.

Opponents had a groundball rate of just 40% against Mariners pitchers in 2022 — lowest in MLB; League Avg: 43%.

Opponents have a groundball rate of just 41% against Mariners pitchers since the 2020 season — 2nd lowest in MLB; League Avg: 44%.

The Mariners have won 38% of road games in which their opponents scored first since the start of last season — 3rd highest in MLB; League Avg: 27%.

Mariners vs. Guardians Injuries Tonight That May Affect Prop Bets 

  • Taylor Trammell (Mariners): Hand, D10
  • Dylan Moore (Mariners): Olique, D10
  • Sam D. Hentges (Guardians): Shoulder, D15
  • Triston McKenzie (Guardians): Shoulder, D15
  • Cody Morris (Guardians): Shoulder, D60

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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.