Mariners vs Royals Prediction, Odds & Player Prop Bets Today – MLB, Aug 17

min read
Kansas City Royals' Bobby Witt Jr. during a baseball game against the Colorado Rockies in Kansas City, Mo., Saturday, June 3, 2023.
(AP Photo/Colin E. Braley)
BetMGM Betting @BETMGM Aug 17, 2023, 3:30 PM
  • The Mariners are + favorites vs the Royals
  • Mariners starting pitcher: George Kirby
  • Royals starting pitcher: Angel Zerpa
  • Watch the game on MLB Network

The Seattle Mariners (+) visit Kauffman Stadium to take on the Kansas City Royals (+) on Thursday, August 17, 2023. First pitch is scheduled for 2:10pm EDT in Kansas City.

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

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

This season, the Mariners are 65-55 against the spread (ATS), while the Royals are 53-69 ATS.

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

SpreadOver / UnderMoneyline
Mariners+ +O ++
Royals + +U ++

Mariners vs Royals Prediction for Today’s Game

Based on recent trends the model predicts the Mariners will win Thursday‘s MLB matchup with 81.6% 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.


Bet now on Mariners vs Royals and all games with BetMGM


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

Best Mariners Player Prop Bets Today:

  • Julio Rodriguez has hit the Hits Over in 16 of his last 23 games (+11.30 Units / 28% ROI)
  • Eugenio Suarez has hit the Singles Over in 16 of his last 25 games (+10.95 Units / 43% ROI)
  • Eugenio Suarez has hit the Hits Over in 22 of his last 28 games (+10.85 Units / 21% ROI)
  • Teoscar Hernandez has hit the Runs Under in 26 of his last 35 games (+10.85 Units / 19% ROI)
  • Ty France has hit the Hits Under in 19 of his last 34 games (+10.00 Units / 25% ROI)

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

Best Royals Player Prop Best Bets Today:

  • Bobby Witt Jr. has hit the RBIs Over in 13 of his last 20 games at home (+13.85 Units / 69% ROI)
  • Drew Waters has hit the Total Bases Over in 17 of his last 20 games at home (+13.10 Units / 41% ROI)
  • Jordan Lyles has hit the Earned Runs Over in 18 of his last 22 games (+12.40 Units / 39% ROI)
  • Drew Waters has hit the Hits Over in 17 of his last 20 games at home (+11.40 Units / 33% ROI)
  • Maikel Garcia has hit the Hits Runs and RBIs Over in 17 of his last 23 games (+11.35 Units / 38% ROI)

Royals vs Mariners Home Run Prop Bets Today

Over Under
Nelson Velazquez 0.5 +600 0.5 -1600

Royals vs Mariners Total Hits Prop Bets Today

Over Under
Cade Marlowe 0.5 -200 0.5 +155
MJ Melendez 0.5 -200 0.5 +150
Jose Caballero 0.5 -210 0.5 +155
Julio Rodriguez 1.5 +115 1.5 -155
Nelson Velazquez 0.5 -210 0.5 +160

Royals vs Mariners RBI Prop Bets Today

Over Under
Julio Rodriguez 0.5 +130 0.5 -175
Nelson Velazquez 0.5 +175 0.5 -250

Royals vs Mariners Strikeout Prop Bets Today

Over Under
Angel Zerpa 2.5 -145 2.5 +110
  • The Seattle Mariners have hit the Moneyline in 27 of their last 40 games (+11.00 Units / 22% ROI)
  • The Seattle Mariners have covered the Run Line in 22 of their last 38 games (+9.45 Units / 20% ROI)
  • The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Over in 12 of their last 17 away games (+6.80 Units / 34% ROI)
  • The Seattle Mariners have covered the 1st Five Innings (F5) Run Line in 13 of their last 19 away games (+6.45 Units / 29% ROI)
  • The Seattle Mariners have hit the 1st Five Innings (F5) Moneyline in 9 of their last 17 away games (+5.80 Units / 28% ROI)
  • The Kansas City Royals have covered the Run Line in 16 of their last 20 games at home (+12.55 Units / 54% ROI)
  • The Kansas City Royals have hit the 1st Five Innings (F5) Moneyline in 13 of their last 20 games at home (+10.90 Units / 53% ROI)
  • The Kansas City Royals have hit the 1st Five Innings (F5) Team Total Over in 14 of their last 17 games (+10.69 Units / 49% ROI)
  • The Kansas City Royals have hit the Moneyline in 13 of their last 22 games at home (+9.80 Units / 44% ROI)
  • The Kansas City Royals have covered the 1st Five Innings (F5) Run Line in 15 of their last 20 games at home (+9.30 Units / 40% ROI)

Mariners Against the Spread (ATS) Record

Against the spread this MLB season, the Mariners have gone 59-61 against the Run Line (-2.8 Units / -1.83% ROI).

  • 65-55 when betting on the Moneyline for -5.35 Units / -3.18% ROI
  • 59-58 when betting on the total runs Over for -4.95 Units / -3.71% ROI
  • 58-59 when betting on the total runs Under for -6.3 Units / -4.81% ROI

Royals Against the Spread (ATS) Record

Against the spread this MLB season, the Royals have gone 53-69 against the Run Line (-26.7 Units / -18.09% ROI).

  • 39-83 when betting on the Moneyline for -29 Units / -23.24% ROI
  • 58-60 when betting on the total runs Over for -8.45 Units / -6.31% ROI
  • 60-58 when betting on the total runs Under for -3.75 Units / -2.83% ROI

George Kirby has pitched 13.2 straight innings without allowing an earned run — Josh Hader has the longest active streak at 20.1.

George Kirby has allowed no extra-base hits in his last 13.2 innings pitched — Tayler Saucedo has the longest active streak at 18.0.

Opponents had a groundball batting average of .381 (67 GB hits out of 176 GBs) against George Kirby in 2022 — highest in MLB among starting pitchers with at least 64 total IP; League Avg: .233 — 0 Percentile.

George Kirby has not walked a batter in his last 18.2 innings pitched — Ross Stripling has the longest active streak at 42.1.

Royals Starting Pitcher Stats & Trends

Angel Zerpa has not allowed a walk in his last 51 PAs against a RHH dating back to July 14th, 2022 — Ross Stripling has the longest active streak at 119.

Angel Zerpa has struck out just 12% (2/17) of left-handed batters he faced over the last 30 days (4 games) — tied for 8th lowest among in MLB; League Avg: 25% — 11th Percentile.

Angel Zerpa has struck out just 4% (1/24) of right-handed batters he faced over the last 30 days (3 games) — 2nd lowest among in MLB; League Avg: 24% — second Percentile.

Angel Zerpa has struck out just 5% (1/20) of right-handed batters he faced — 2nd lowest among qualified RPs in MLB; League Avg: 24% — second Percentile.

Mariners Keys to the Game vs. the Royals

The Mariners are 18-1 (.947) when they’ve had 5 or more XBH this season — 2nd best in MLB; League Avg: .789.

The Mariners are 72-10 (.878) when they’ve had 10 or more hits since last season — best in MLB; League Avg: .728.

The Mariners are 36-3 (.923) when they’ve had 5 or more XBH since last season — best in MLB; League Avg: .796.

The Mariners are 32-4 (.889) when they’ve had 10 or more hits this season — best in MLB; League Avg: .728.

Royals Keys to the Game vs. the Mariners

The Royals are just 5-34 (.128) when their opponents score in the first inning this season — lowest in MLB; League Avg: .387.

The Royals are just 9-75 (.107) when their opponents score in the first inning since last season — lowest in MLB; League Avg: .358.

The Royals are just 26-26 (.500) when allowing 4 or fewer runs this season — lowest in MLB; League Avg: .729.

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

team hitters – away

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 27% on the road this season — 2nd lowest in MLB; League Avg: 47%.

The Royals have a winning percentage of just 32% this season — 2nd lowest in MLB; League Avg: 50%.

The Royals have a winning percentage of just 30% on the road since last season — lowest in MLB; League Avg: 47%.

Mariners pitchers have walked 310 of 4,449 batters (7%) this season — 2nd best in MLB; League Avg: 9%.

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

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

Mariners pitchers have walked 761 of 10,479 batters (7%) since last season — tied for 3rd best in MLB; League Avg: 8%.

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

Royals pitchers have a strikeout rate of just 18% with runners in scoring position since last season — lowest in MLB; League Avg: 22%.

The Royals have won just 20% of games in which their opponents scored first since last season — 2nd lowest in MLB; League Avg: 32%.

Opponents have a miss rate of just 24% against Royals pitchers since last season — tied for 5th lowest in MLB; League Avg: 26%.

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, D60
  • 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
  • Thomas Murphy (Mariners): Thumb, D10
  • Robert Ray (Mariners): Flexor, D60
  • William Murfee (Mariners): Elbow, D60
  • Evan White (Mariners): Adductor, D60
  • Jarred Kelenic (Mariners): Foot, D10

Bet now on Mariners vs Royals and all games with BetMGM


Bet on MLB Odds at BetMGM

At BetMGM, you can bet online with updated MLB betting odds. And with live sports betting, the best online sports betting and mobile sports betting (with the BetMGM Sportsbook app) experiences are at BetMGM.

BetMGM First Bet Offer $1,500
About the Author

BetMGM Betting

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.