• The Red Sox are -102 favorites vs the Royals
• Red Sox vs Royals Over / Under today: 8 Runs
• Red Sox / Royals TV Channel: NESN | RYTV

The Boston Red Sox (-102) visit Kauffman Stadium to take on the Kansas City Royals (-118) on May 20, 2026. First pitch is scheduled for 7:40 pm in Kansas City, MO.

This season, the Red Sox are 21-27 against the spread (ATS), while the Royals are 20-28 ATS.

Red Sox vs Royals Starting Pitchers Today:

• Red Sox starting pitcher: Connelly Early 3-2, 3.19 ERA
• Royals starting pitcher: Michael Wacha 4-2, 2.84 ERA

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

Red Sox vs Royals Prediction for Today’s Game

Based on recent trends the model predicts the Royals will win Wednesday‘s MLB game with 51.0% confidence, factoring in game simulations, recent player performances, starting pitchers and injuries.

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

Best Red Sox Player Prop Bets Today:

• Willson Contreras has hit the Home Runs Over in 4 of his last 9 away games (+12.10 Units / 134% ROI)
• Jarren Duran has hit the Hits Under in 14 of his last 25 away games (+10.10 Units / 38% ROI)
• Mickey Gasper has hit the Walks Under in his last 10 games (+10.00 Units / 45% ROI)
• Jarren Duran has hit the Singles Under in 18 of his last 25 away games (+9.70 Units / 30% ROI)
• Willson Contreras has hit the RBIs Over in 11 of his last 20 away games (+9.30 Units / 47% ROI)

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

Best Royals Player Prop Best Bets Today:

• Lane Thomas has hit the Runs Under in 22 of his last 25 games (+16.75 Units / 34% ROI)
• Carter Jensen has hit the Total Bases Under in 16 of his last 20 games (+12.65 Units / 45% ROI)
• Starling Marte has hit the Hits Over in 14 of his last 15 games at home (+11.95 Units / 42% ROI)
• Bobby Witt Jr. has hit the Home Runs Over in 4 of his last 10 games at home (+10.00 Units / 100% ROI)
• Vinnie Pasquantino has hit the Singles Under in 18 of his last 25 games at home (+9.00 Units / 28% ROI)

Red Sox Best Bets Today:

• The Boston Red Sox have hit the Team Total Under in 22 of their last 30 games (+12.60 Units / 35% ROI)
• The Boston Red Sox have hit the 1st Five Innings (F5) Team Total Under in 20 of their last 30 games (+9.10 Units / 25% ROI)
• The Boston Red Sox have covered the Run Line in 12 of their last 19 away games (+6.55 Units / 26% ROI)
• The Boston Red Sox have hit the Game Total Under in 13 of their last 20 games (+6.30 Units / 29% ROI)
• The Boston Red Sox have hit the Moneyline in 9 of their last 13 away games (+5.45 Units / 39% ROI)

Royals Best Bets Today:

• The Kansas City Royals have hit the 1st Five Innings (F5) Team Total Under in 27 of their last 40 games (+11.95 Units / 25% ROI)
• The Kansas City Royals have hit the Team Total Under in their last 6 games (+6.00 Units / 76% ROI)
• The Kansas City Royals have hit the Game Total Over in 11 of their last 16 games at home (+5.55 Units / 31% ROI)
• The Kansas City Royals have hit the 1st Five Innings (F5) Moneyline in 10 of their last 18 games at home (+4.85 Units / 19% ROI)
• The Kansas City Royals have covered the 1st Five Innings (F5) Run Line in 11 of their last 18 games at home (+3.45 Units / 16% ROI)

Red Sox Against the Spread (ATS) Record

Against the spread this season, the Red Sox are 20-27 against the Run Line (-6.65 Units / -11.39% ROI).

• 21-27 when betting on the Moneyline for -11.95 Units / -20.08% ROI
• 21-26 when betting on the total runs Over for -7.8 Units / -14.74% ROI
• 26-21 when betting on the total runs Under for +2.85 Units / 5.4% ROI

Royals Against the Spread (ATS) Record

Against the spread this season, the Royals are 20-28 against the Run Line (-12.2 Units / -18.77% ROI).

• 20-29 when betting on the Moneyline for -13.5 Units / -22.96% ROI
• 22-27 when betting on the total runs Over for -7.45 Units / -13.87% ROI
• 27-22 when betting on the total runs Under for +2.85 Units / 5.27% ROI

Royals vs Red Sox Home Run Prop Bets Today

Royals vs Red Sox Total Hits Prop Bets Today

Royals vs Red Sox Strikeout Prop Bets Today

Red Sox Keys to the Game vs. the Royals

The Red Sox are 19-0 (1.000) when leading entering the 8th inning this season — tied for best in MLB; League Avg: .896.

The Red Sox are just 4-15 (.211) when their opponents score in the first inning this season — 2nd lowest in MLB; League Avg: .359.

The Red Sox are just 0-24 (.000) when trailing entering the 9th inning this season — tied for lowest in MLB; League Avg: .052.

The Red Sox are just 2-15 (.118) when allowing 10 or more hits this season — tied for 5th lowest in MLB; League Avg: .248.

Royals Keys to the Game vs. the Red Sox

The Royals are just 9-19 (.321) after a loss this season — tied for lowest in MLB; League Avg: .482.

The Royals are just 3-11 (.214) when their opponents score in the first inning this season — 3rd lowest in MLB; League Avg: .359.

The Royals are just 15-4 (.789) when leading entering the 8th inning this season — lowest in MLB; League Avg: .896.

The Royals are just 1-13 (.071) when allowing 10 or more hits this season — 2nd lowest in MLB; League Avg: .248.

Red Sox Hitting Stats & Trends

Red Sox hitters are slugging just .329 at home this season — tied for 2nd lowest in MLB.

Red Sox hitters have an OPS of just .656 (1,380 PA’s) against RHP this season — lowest in MLB.

Red Sox hitters have an OPS of just .628 (788 PA’s) at home this season — 3rd lowest in MLB.

The Red Sox are batting .272 against LHP this season — 3rd best in MLB.

Royals Hitting Stats & Trends

Royals hitters are slugging just .212 with two-strikes this season — lowest in MLB.

Royals hitters are slugging just .160 on pitches out of the zone this season — tied for 2nd lowest in MLB.

Royals hitters have an OBP of just .288 (894 PA’s) on the road this season — 2nd lowest in MLB.

32% of Royals hitters strikeouts have come on 95+ MPH fastballs this season — 2nd highest in MLB.

Red Sox Pitching Stats & Trends

Red Sox pitchers have walked 5% of batters when facing the leadoff batter in the inning this season — best in MLB.

Opponents have a groundball batting average of just .202 against Red Sox pitchers with runners on base this season — best in MLB.

The Red Sox have allowed 0.85 runs per game (41/48) in late innings this season — best in MLB.

Red Sox pitchers have a strikeout rate of 29% in close and late situations this season — 2nd best in MLB.

Royals Pitching Stats & Trends

Royals pitchers have walked 11% of batters this season — 4th highest in MLB.

Opponents have a groundball rate of just 41% against Royals pitchers this season — 5th lowest in MLB.

Royals pitchers have allowed three-ball counts to 24% of batters they faced (437/1,850 PA’s) this season — 2nd highest in MLB.

Royals pitchers have picked-off 9 runners from first base this season — most in MLB.

More MLB Reading:

• Home Run Predictions Today
• Best NRFI Bets Today
• Strikeout Props Today
• MLB Starting Pitchers Today

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