Mariners vs Royals Prediction, Odds & Player Prop Bets Today – MLB, Aug 15

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Kansas City Royals' Vinnie Pasquantino at bat during the first inning of a baseball game against the Toronto Blue Jays, Monday, April 3, 2023, in Kansas City, Mo.
(AP Photo/Reed Hoffmann)
BetMGM Betting @BETMGM Aug 15, 2023, 3:30 PM
  • The Mariners are -145 favorites vs the Royals
  • Mariners starting pitcher: Emerson Hancock
  • Royals starting pitcher: Jordan Lyles
  • Watch the game on BSKC

The Seattle Mariners (-145) visit Kauffman Stadium to take on the Kansas City Royals (+120) on Tuesday, August 15, 2023. First pitch is scheduled for 8:10pm EDT in Kansas City.

The Mariners are the betting favorite in this game, with the run line sitting at -1.5 (+110).

The Mariners vs Royals Over/Under is 9.5 total runs for the game.

This season, the Mariners are 63-55 against the spread (ATS), while the Royals are 52-68 ATS.

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

SpreadOver / UnderMoneyline
Mariners-1.5 +110O 9.5 -120-145
Royals +1.5 -135U 9.5 +100+120

Mariners vs Royals Prediction for Today’s Game

Based on recent trends the model predicts the Mariners will win Tuesday‘s MLB matchup with 68.2% confidence.

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


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

Best Mariners Player Prop Bets Today:

  • Tom Murphy has hit the Hits Over in 19 of his last 22 games (+14.50 Units / 42% ROI)
  • Tom Murphy has hit the Total Bases Over in 18 of his last 22 games (+13.35 Units / 41% ROI)
  • Tom Murphy has hit the Runs Over in 14 of his last 23 games (+12.80 Units / 56% ROI)
  • Ty France has hit the Hits Under in 18 of his last 32 games (+11.55 Units / 33% ROI)
  • Teoscar Hernandez has hit the Runs Under in 25 of his last 33 games (+11.30 Units / 20% ROI)

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

Best Royals Player Prop Best Bets Today:

  • Bobby Witt Jr. has hit the RBIs Over in 12 of his last 18 games at home (+13.35 Units / 74% ROI)
  • Maikel Garcia has hit the Singles Over in his last 12 games (+12.00 Units / 47% ROI)
  • Jordan Lyles has hit the Earned Runs Over in 17 of his last 21 games (+11.40 Units / 38% ROI)
  • Drew Waters has hit the Total Bases Over in 15 of his last 18 games at home (+11.10 Units / 39% ROI)
  • Drew Waters has hit the Hits Runs and RBIs Over in 14 of his last 18 games at home (+11.00 Units / 55% ROI)

Royals vs Mariners Home Run Prop Bets Today

Over Under
Teoscar Hernandez 0.5 +375 0.5 -700
Josh Rojas 0.5 +950 0.5 -10000
Cade Marlowe 0.5 +600 0.5 -1600
Eugenio Suarez 0.5 +400 0.5 -700
Dylan Moore 0.5 +550 0.5 -1200

Royals vs Mariners Total Hits Prop Bets Today

Over Under
Teoscar Hernandez 1.5 +165 1.5 -225
Josh Rojas 0.5 -190 0.5 +145
Cade Marlowe 0.5 -200 0.5 +150
Eugenio Suarez 0.5 -250 0.5 +175
Dylan Moore 0.5 -145 0.5 +110

Royals vs Mariners RBI Prop Bets Today

Over Under
Teoscar Hernandez 0.5 +140 0.5 -185
Josh Rojas 0.5 +220 0.5 -300
Cade Marlowe 0.5 +200 0.5 -275
Eugenio Suarez 0.5 +150 0.5 -200
Dylan Moore 0.5 +210 0.5 -300

Royals vs Mariners Strikeout Prop Bets Today

Over Under
Emerson Hancock 4.5 +115 4.5 -155
Jordan Lyles 4.5 -130 4.5 +100
  • The Seattle Mariners have covered the Run Line in 21 of their last 36 games (+9.70 Units / 22% ROI)
  • The Seattle Mariners have hit the Moneyline in 25 of their last 38 games (+9.00 Units / 19% ROI)
  • The Seattle Mariners have hit the Game Total Under in 12 of their last 17 away games (+6.85 Units / 38% ROI)
  • The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Under in 9 of their last 13 games (+4.88 Units / 31% ROI)
  • The Seattle Mariners have covered the 1st Five Innings (F5) Run Line in 11 of their last 17 away games (+4.40 Units / 22% ROI)
  • The Kansas City Royals have hit the 1st Five Innings (F5) Moneyline in 13 of their last 18 games at home (+12.90 Units / 70% ROI)
  • The Kansas City Royals have covered the Run Line in 15 of their last 18 games at home (+12.70 Units / 60% ROI)
  • The Kansas City Royals have hit the Moneyline in 13 of their last 20 games at home (+11.80 Units / 59% ROI)
  • The Kansas City Royals have covered the 1st Five Innings (F5) Run Line in 15 of their last 18 games at home (+11.65 Units / 56% ROI)
  • The Kansas City Royals have hit the 1st Five Innings (F5) Team Total Over in 12 of their last 15 games (+8.49 Units / 43% ROI)

Mariners Against the Spread (ATS) Record

Against the spread this MLB season, the Mariners have gone 58-60 against the Run Line (-2.55 Units / -1.69% ROI).

  • 63-55 when betting on the Moneyline for -7.35 Units / -4.47% ROI
  • 57-58 when betting on the total runs Over for -6.95 Units / -5.3% ROI
  • 58-57 when betting on the total runs Under for -4.1 Units / -3.18% ROI

Royals Against the Spread (ATS) Record

Against the spread this MLB season, the Royals have gone 52-68 against the Run Line (-26.55 Units / -18.27% ROI).

  • 39-81 when betting on the Moneyline for -27 Units / -21.99% ROI
  • 56-60 when betting on the total runs Over for -10.45 Units / -7.94% ROI
  • 60-56 when betting on the total runs Under for -1.55 Units / -1.19% ROI

Emerson Hancock has limited playing time.

Royals Starting Pitcher Stats & Trends

Jordan Lyles has allowed a slugging percentage of just .060 (3 Total Bases / 50 ABs) on fastballs away this season — best among qualified SPs in MLB; League Avg: .371 — 100th Percentile.

Jordan Lyles has an ERA of 6.13 (126.1 IP)this season — highest among qualified SPs in MLB; League Avg: 3.96 — first Percentile.

Jordan Lyles has allowed an OPS of 1.093 (113 PA’s) with runners in scoring position this season — highest among qualified SPs in MLB; League Avg: .713 — first Percentile.

Jordan Lyles allowed a slugging percentage of .417 (151 Total Bases / 362 ABs) with two-strikes in 2022 — highest among qualified SPs in MLB; League Avg: .240 — second Percentile.

Mariners Keys to the Game vs. the Royals

The Mariners are 31-4 (.886) when they’ve had 10 or more hits this season — best in MLB; League Avg: .728.

The Mariners are 71-10 (.877) when they’ve had 10 or more hits since last season — best in MLB; League Avg: .728.

The Mariners are 117-5 (.959) when leading entering the 8th inning since last season — best in MLB; League Avg: .908.

The Mariners are 46-8 (.852) when scoring 5 or more runs this season — 4th best in MLB; League Avg: .782.

Royals Keys to the Game vs. the Mariners

The Royals are just 26-26 (.500) when allowing 4 or fewer runs this season — lowest in MLB; League Avg: .728.

The Royals are just 1-7 (.125) when tied entering the 8th inning this season — lowest in MLB; League Avg: .500.

The Royals are just 36-72 (.333) when allowing 5 or more extra base hits this season — 2nd lowest in MLB; League Avg: .538.

The Royals are just 7-13 (.350) after a loss as favorites since last season — lowest in MLB; League Avg: .585.

Mariners hitters are slugging just .165 on pitches out of the zone since the 2021 season — 2nd lowest in MLB; League Avg: .211.

The Mariners are batting just .112 on pitches out of the zone this season — lowest in MLB; League Avg: .150.

The Mariners are batting just .224 when facing the starting pitcher for the 3rd time in a game this season — lowest in MLB; League Avg: .265.

Mariners hitters are slugging just .169 on pitches out of the zone since last season — 2nd lowest in MLB; League Avg: .213.

The Royals have won just 52% of games in which they have scored in at least three different innings on the road since last season — 2nd lowest in MLB; League Avg: 72%.

The Royals have a winning percentage of just 33% this season — 2nd lowest in MLB; League Avg: 50%.

The Royals are batting just .209 with two outs this season — 2nd lowest in MLB; League Avg: .237.

The Royals have won just 50% of games in which they have scored in at least three different innings this season — lowest in MLB; League Avg: 72%.

Opponents have a swing rate of 50% against the Mariners pitchers this season — highest in MLB; League Avg: 47%.

Mariners pitchers have thrown at least two strikes in their first three pitches to 69% of opposing batters this season — highest in MLB; League Avg: 64%.

Mariners pitchers have a strike rate of 67% this season — highest in MLB; League Avg: 64%.

Mariners pitchers have walked 306 of 4,368 batters (7%) this season — 2nd best in MLB; League Avg: 9%.

Royals pitchers have a strikeout rate of just 35% with two-strikes over the last 14 days (13 games) — 2nd lowest in MLB; League Avg: 43%.

Royals pitchers have a strikeout rate of just 20% since last season — tied for 2nd lowest in MLB; League Avg: 23%.

Royals pitchers have won only 16% of games in which they have allowed their opponent to score in three different innings since last season — lowest in MLB; League Avg: 27%.

Royals pitchers have an ERA of 5.34 (499.0 IP) on the road this season — 2nd highest in MLB; League Avg: 4.46.

Royals vs. Mariners Injuries Tonight That May Affect Prop Bets 

  • Daniel A. Lynch (Royals): Shoulder, D15
  • Jacob Brentz (Royals): Elbow, D60
  • Vincent Pasquantino (Royals): Shoulder, D60
  • Kristofer Bubic (Royals): Flexor, D60
  • Donald Greinke (Royals): Elbow, D15
  • Nicholas Pratto (Royals): Groin, D10
  • Joshua Staumont (Royals): Neck, D60
  • Brad Keller (Royals): Shoulder, D15
  • Taylor Clarke (Royals): Elbow, D15
  • Josh Taylor (Royals): Shoulder, D60
  • John Crawford (Mariners): Concussion, D7
  • Easton McGee (Mariners): Forearm, D60
  • Marco Gonzales (Mariners): Forearm, D60
  • Bryan Woo (Mariners): Forearm, D15
  • Robert Ray (Mariners): Flexor, D60
  • William Murfee (Mariners): Elbow, D60
  • Evan White (Mariners): Adductor, D60
  • Jarred Kelenic (Mariners): Foot, D10

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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.