Mariners vs Athletics Prediction, Odds & Player Prop Bets Today – MLB, Sep 21

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MLB betting odds, predictions and betting odds for today's games
(AP Photo)
BetMGM Betting @BETMGM Sep 21, 2022, 3:30 PM
  • The Mariners (81-66) are -200 favorites vs the Athletics (54-94)
  • Mariners starting pitcher: Robert Ray (12-10), 3.72 ERA
  • Athletics starting pitcher: James Kaprielian (3-9), 4.69 ERA
  • Watch the game on MLB Network

The Seattle Mariners (-200) visit Oakland Coliseum to take on the Oakland Athletics (+170) on Wednesday, September 21, 2022. First pitch is scheduled for 9:40pm EDT in Oakland.

The Mariners are betting favorites in this MLB matchup, with the run line sitting at -1.5 (-120).

The Mariners vs Athletics Over/Under is 7 total runs for the game.

So far this season, the Mariners are 80-64 against the spread (ATS), while the Athletics are 70-75 ATS.

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

SpreadOver / UnderMoneyline
Mariners-1.5 -120O 7 +100-200
Athletics +1.5 +100U 7 -120+170

Mariners vs Athletics Prediction for Today’s Game

Based on recent trends the model predicts the Mariners will win Wednesday‘s matchup with 62.4% confidence.

This prediction factors in starting pitchers, recent team and player hitting performances, the last 5 games for both the Mariners and Athletics and up-to-date player injuries.


Looking for a risk-free bet up to $1,000? Bet now on Athletics vs Mariners and all MLB games with BetMGM


Best Mariners Player Prop Bets Today

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

  • Eugenio Suarez has hit the Hits Over in 40 of his last 52 away games (+20.50 Units / 24% ROI)
  • Luis Castillo has hit the Strikeouts Over in 15 of his last 20 games (+10.45 Units / 44% ROI)
  • Eugenio Suarez has hit the Total Bases Over in 34 of his last 52 away games (+9.95 Units / 13% ROI)
  • Ty France has hit the Hits Under in 15 of his last 25 games (+9.70 Units / 27% ROI)
  • Ty France has hit the Singles Under in 17 of his last 25 games (+9.60 Units / 37% ROI)

Best Athletics Player Prop Best Bets Today

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

  • Nick Allen has hit the Total Bases Over in 28 of his last 40 games (+13.05 Units / 25% ROI)
  • Nick Allen has hit the Hits Over in 28 of his last 40 games (+11.35 Units / 20% ROI)
  • Vimael Machin has hit the Singles Under in 18 of his last 23 games at home (+11.30 Units / 36% ROI)
  • Tony Kemp has hit the Singles Over in 25 of his last 37 games (+10.15 Units / 21% ROI)
  • Tony Kemp has hit the Total Bases Over in 16 of his last 21 games at home (+9.90 Units / 29% ROI)

Athletics vs Mariners Home Run Prop Bets Today

Over Under
Chad Pinder 0.5 +550 0.5 -1200
Dermis Garcia 0.5 +450 0.5 -900
Diaz 0.5 +800 0.5 -3000
Nick Allen 0.5 +1200 0.5
Sean Murphy 0.5 +500 0.5 -1100

Athletics vs Mariners Total Hits Prop Bets Today

Over Under
Chad Pinder 0.5 -150 0.5 +105
Dermis Garcia 0.5 -150 0.5 +105
Diaz 0.5 -140 0.5 +100
Nick Allen 0.5 -130 0.5 -110
Sean Murphy 0.5 -175 0.5 +120

Athletics vs Mariners RBI Prop Bets Today

Over Under
Chad Pinder 0.5 +210 0.5 -350
Dermis Garcia 0.5 +230 0.5 -350
Diaz 0.5 +300 0.5 -500
Nick Allen 0.5 +360 0.5 -650
Sean Murphy 0.5 +210 0.5 -350

Athletics vs Mariners Strikeout Prop Bets Today

Over Under
James Kaprielian 3.5 -120 3.5 -115
Robbie Ray 6.5 -120 6.5 -115
  • The Seattle Mariners have hit the 1st Five Innings (F5) Total Over in 15 of their last 23 away games (+8.70 Units / 35% ROI)
  • The Seattle Mariners have covered the 1st Five Innings (F5) Run Line in 27 of their last 45 away games (+6.73 Units / 13% ROI)
  • The Seattle Mariners have hit the Game Total Under in 11 of their last 17 games (+4.50 Units / 23% ROI)
  • The Seattle Mariners have hit the 1st Five Innings (F5) Moneyline in 14 of their last 23 games (+2.95 Units / 9% ROI)
  • The Oakland Athletics have hit the 1st Five Innings (F5) Total Over in 14 of their last 20 games (+9.70 Units / 45% ROI)
  • The Oakland Athletics have covered the 1st Five Innings (F5) Run Line in 14 of their last 21 games (+9.35 Units / 42% ROI)
  • The Oakland Athletics have hit the Game Total Over in 9 of their last 13 games (+5.75 Units / 40% ROI)
  • The Oakland Athletics have hit the Moneyline in 4 of their last 8 games (+3.25 Units / 41% ROI)
  • The Oakland Athletics have hit the 1st Five Innings (F5) Moneyline in 3 of their last 5 games at home (+2.40 Units / 48% ROI)

Mariners Against the Spread (ATS) Record

Against the spread this MLB season, the Mariners have gone 78-65 against the Run Line (+4.05 Units / 2.13% ROI).

  • 80-64 when betting on the Moneyline for +10.45 Units / 5.78% ROI
  • 65-72 when betting on the total runs Over for -12.9 Units / -8.18% ROI
  • 72-65 when betting on the total runs Under for +1 Units / 0.63% ROI

Athletics Against the Spread (ATS) Record

Against the spread this MLB season, the Mariners have gone 70-75 against the Run Line (-19.2 Units / -10.31% ROI).

  • 52-93 when betting on the Moneyline for -19.65 Units / -12.96% ROI
  • 65-74 when betting on the total runs Over for -16.8 Units / -10.45% ROI
  • 74-65 when betting on the total runs Under for +2.8 Units / 1.76% ROI

Robbie Ray has thrown inside pitches 47% of the time (897/1,895) with two-strikes since the start of last season — highest among qualified SPs in MLB; League Avg: 31% — 100th Percentile.

Robbie Ray has thrown inside pitches 42% of the time (1,166/2,759) this season — highest among qualified SPs in MLB; League Avg: 31% — 100th Percentile.

Robbie Ray has allowed a slugging percentage of .854 (35 Total Bases / 41 ABs) in late innings this season — 2nd highest in MLB among starting pitchers with at least 73 total IP; League Avg: .400 — third Percentile.

Robbie Ray has walked 51 of 566 right-handed batters (9%) this season — tied for highest among qualified SPs in MLB; League Avg: 6% — fourth Percentile.

James Kaprielian: Athletics Starting Pitcher Stats & Trends

James Kaprielian has walked 35 of 251 right-handed batters (14%) this season — 2nd highest in MLB among starting pitchers with at least 73 total IP; League Avg: 7% — first Percentile.

James Kaprielian has allowed an OPS of 1.081 (95 PA’s) when going through the lineup the third time in a game this season — 3rd highest in MLB among starting pitchers with at least 73 total IP; League Avg: .755 — third Percentile.

James Kaprielian has walked 13 of 95 batters (14%) when going through the lineup the third time in a game this season — highest in MLB among starting pitchers with at least 73 total IP; League Avg: 7% — first Percentile.

James Kaprielian has a strikeout rate of just 8% (8 SO in 95 PAs) when going through the lineup the third time in a game this season — lowest in MLB among starting pitchers with at least 73 total IP; League Avg: 20% — first Percentile.

Mariners Keys to the Game vs. the Athletics

The Mariners are 7-59 (.106) when trailing entering the 8th inning this season — 8th best in MLB; League Avg: .085.

The Mariners are 8-54 (.129) when trailing entering the 7th inning this season — 10th best in MLB; League Avg: .119.

The Mariners are 62-2 (.969) when leading entering the 7th inning this season — 2nd best in MLB; League Avg: .881.

The Mariners are 37-11 (.771) when hitting 2 or more home runs this season — 9th best in MLB; League Avg: .710.

Athletics Keys to the Game vs. the Mariners

The Athletics are just 52-80 (.394) when allowing 5 or more extra base hits this season — 3rd lowest in MLB; League Avg: .534.

The Athletics are just 5-12 (.294) when tied entering the 8th inning this season — tied for 2nd lowest in MLB; League Avg: .500.

The Athletics are just 24-49 (.329) at home this season — 2nd lowest in MLB; League Avg: .527.

The Athletics are just 47-8 (.855) when leading entering the 8th inning this season — 4th lowest in MLB; League Avg: .915.

Mariners hitters are slugging just .165 on pitches out of the zone since the start of last season — lowest in MLB; League Avg: .211.

The Mariners are batting just .217 at home since the start of last season — tied for lowest in MLB; League Avg: .247.

The Mariners are batting just .217 at home since the start of 2020 — lowest in MLB; League Avg: .247.

Mariners hitters are slugging just .169 on pitches out of the zone since the start of 2020 — lowest in MLB; League Avg: .211.

The Athletics are batting just .204 at home this season — lowest in MLB; League Avg: .245.

Athletics hitters have an OBP of just .274 (2,577 PA’s) at home this season — lowest in MLB; League Avg: .316.

Athletics hitters have an OBP of just .279 (3,965 PA’s) against RHP this season — 2nd lowest in MLB; League Avg: .311.

Athletics hitters have an OPS of just .593 (2,577 PA’s) at home this season — lowest in MLB; League Avg: .718.

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

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

Mariners pitchers have walked 887 of 11,528 batters (8%) since the start of last season — 5th best in MLB; League Avg: 8%.

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

In games when their opponents have scored three or more runs in an inning, the Athletics have won just just 9% of the time at home since the start of last season — lowest in MLB; League Avg: 27%.

The Athletics have won just 24% of home games in which their opponents scored first since the start of last season — 2nd lowest in MLB; League Avg: 36%.

In games when their opponents have scored three or more runs in an inning, the Athletics have won just just 0% of the time at home this season — lowest in MLB; League Avg: 25%.

Opponents have a groundball rate of just 41% against Athletics pitchers since the start of last season — 4th lowest in MLB; League Avg: 43%.

Athletics vs. Mariners Injuries Tonight That May Affect Prop Bets 

  • Dany Jiménez (Athletics): Shoulder, D60
  • Adam Oller (Athletics): Rib, D15
  • Daulton Jefferies (Athletics): Arm, D60
  • Zachary Jackson (Athletics): Shoulder, D15
  • Paul Blackburn (Athletics): Finger, D60
  • Samuel Moll (Athletics): Shoulder, D15
  • Ramón Laureano (Athletics): Hamstring, D10
  • Deolis Guerra (Athletics): Elbow, D60
  • Thomas Murphy (Mariners): Shoulder, D60
  • Eugenio Suárez (Mariners): Finger, D10
  • Casey Sadler (Mariners): Shoulder, D60
  • Ryan Borucki (Mariners): Forearm, D15

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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.