• The Red Sox are -175 favorites vs the Diamondbacks
• Diamondbacks vs Red Sox Over / Under today: 8 Runs
• Diamondbacks / Red Sox TV Channel: NESN | DBTV | WSBK

The Arizona Diamondbacks (+145) visit Fenway Park to take on the Boston Red Sox (-175) on August 18, 2026. First pitch is scheduled for 7:10 pm in Boston, MA.

This season, the Diamondbacks are 66-60 against the spread (ATS), while the Red Sox are 61-60 ATS.

Diamondbacks vs Red Sox Starting Pitchers Today:

• Diamondbacks starting pitcher: Merrill Kelly 8-10, 5.13 ERA
• Red Sox starting pitcher: Ranger Suarez 4-3, 3.29 ERA

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

Diamondbacks vs Red Sox Prediction for Today’s Game

Based on recent trends the model predicts the Red Sox will win Tuesday‘s MLB game with 55.8% 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 Diamondbacks players for Tuesday‘s game, looking at profitable historical betting trends:

Best Diamondbacks Player Prop Bets Today:

• Corbin Carroll has hit the Walks Over in 14 of his last 20 away games (+14.25 Units / 71% ROI)
• Nolan Arenado has hit the Singles Under in 17 of his last 20 away games (+12.75 Units / 44% ROI)
• Nolan Arenado has hit the Home Runs Over in 3 of his last 9 games (+12.20 Units / 136% ROI)
• Gabriel Moreno has hit the Hits Over in 18 of his last 25 away games (+11.85 Units / 26% ROI)
• Gabriel Moreno has hit the Hits Runs and RBIs Over in 19 of his last 25 away games (+11.80 Units / 38% ROI)

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

Best Red Sox Player Prop Best Bets Today:

• Andruw Monasterio has hit the Hits Runs and RBIs Over in 19 of his last 25 games (+13.70 Units / 46% ROI)
• Andruw Monasterio has hit the Total Bases Over in 19 of his last 25 games (+13.60 Units / 41% ROI)
• Adley Rutschman has hit the Walks Over in 13 of his last 20 games at home (+13.55 Units / 68% ROI)
• Andruw Monasterio has hit the Hits Over in 21 of his last 25 games (+13.05 Units / 30% ROI)
• Caleb Durbin has hit the RBIs Over in his last 6 games at home (+10.60 Units / 177% ROI)

Diamondbacks Best Bets Today:

• The Arizona Diamondbacks have hit the 1st Five Innings (F5) Team Total Under in 33 of their last 50 away games (+15.50 Units / 26% ROI)
• The Arizona Diamondbacks have hit the Game Total Under in 24 of their last 35 away games (+12.05 Units / 31% ROI)
• The Arizona Diamondbacks have hit the Moneyline in 12 of their last 18 away games (+10.95 Units / 59% ROI)
• The Arizona Diamondbacks have hit the 1st Five Innings (F5) Moneyline in 20 of their last 40 games (+6.05 Units / 13% ROI)
• The Arizona Diamondbacks have covered the 1st Five Innings (F5) Run Line in 24 of their last 40 games (+6.05 Units / 13% ROI)

Red Sox Best Bets Today:

• The Boston Red Sox have hit the Moneyline in 36 of their last 50 games (+16.90 Units / 24% ROI)
• The Boston Red Sox have hit the 1st Five Innings (F5) Team Total Over in 34 of their last 50 games (+16.75 Units / 28% ROI)
• The Boston Red Sox have covered the Run Line in 30 of their last 50 games (+15.40 Units / 26% ROI)
• The Boston Red Sox have covered the 1st Five Innings (F5) Run Line in 32 of their last 50 games (+12.80 Units / 22% ROI)
• The Boston Red Sox have hit the Team Total Over in 32 of their last 50 games (+12.00 Units / 20% ROI)

Diamondbacks Against the Spread (ATS) Record

Against the spread this season, the Diamondbacks are 67-55 against the Run Line (+1 Units / 0.59% ROI).

• 66-60 when betting on the Moneyline for +7.6 Units / 5.17% ROI
• 53-67 when betting on the total runs Over for -20.75 Units / -14.9% ROI
• 67-53 when betting on the total runs Under for +9.2 Units / 6.66% ROI

Red Sox Against the Spread (ATS) Record

Against the spread this season, the Red Sox are 61-60 against the Run Line (+2.5 Units / 1.6% ROI).

• 67-58 when betting on the Moneyline for -4.85 Units / -3% ROI
• 57-64 when betting on the total runs Over for -14.1 Units / -10.21% ROI
• 64-57 when betting on the total runs Under for +1.15 Units / 0.84% ROI

Red Sox vs Diamondbacks Home Run Prop Bets Today

Red Sox vs Diamondbacks Total Hits Prop Bets Today

Red Sox vs Diamondbacks Strikeout Prop Bets Today

Diamondbacks Keys to the Game vs. the Red Sox

The Diamondbacks were just 67-13 (.838) when leading entering the 8th inning in the 2025 season — tied for 2nd lowest in MLB; League Avg: .909.

The Diamondbacks were just 67-7 (.905) when leading entering the 9th inning in the 2025 season — 2nd lowest in MLB; League Avg: .956.

The Diamondbacks were 65-19 (.774) when they allowed 4 or fewer runs in the 2025 season — 4th best in MLB; League Avg: .714.

The Diamondbacks were just 61-17 (.782) when leading entering the 7th inning in the 2025 season — 2nd lowest in MLB; League Avg: .875.

Red Sox Keys to the Game vs. the Diamondbacks

The Red Sox were just 18-69 (.207) when they scored 4 or fewer runs in the 2024 season — 4th lowest in MLB; League Avg: .276.

The Red Sox were 71-4 (.947) when leading entering the 8th inning in the 2025 season — tied for 2nd best in MLB; League Avg: .909.

The Red Sox were 37-14 (.725) when they scored in the first inning in the 2025 season — 4th best in MLB; League Avg: .636.

The Red Sox were just 5-58 (.079) when trailing entering the 7th inning in the 2024 season — 3rd lowest in MLB; League Avg: .143.

Diamondbacks Hitting Stats & Trends

Diamondbacks hitters have a swing rate of just 25% on the first pitch of at-bats this season — lowest in MLB.

Diamondbacks hitters have struck out in just 17% of their PA’s against LHP this season — best in MLB.

The Diamondbacks are batting .277 against LHP this season — best in MLB.

Diamondbacks hitters have an OBP of .342 (1,262 PA’s) against LHP this season — 2nd best in MLB.

Red Sox Hitting Stats & Trends

Red Sox hitters have an OPS of .765 (1,233 PA’s) against LHP this season — 4th best in MLB.

The Red Sox are batting .258 against LHP this season — 4th best in MLB.

The Red Sox are batting .283 in lefty-lefty matchups this season — 2nd best in MLB.

Red Sox hitters are slugging .430 against LHP this season — 4th best in MLB.

Diamondbacks Pitching Stats & Trends

Diamondbacks pitchers have a strikeout rate of just 18% this season — 2nd lowest in MLB.

Opponents have a miss rate of just 22% against Diamondbacks pitchers this season — tied for lowest in MLB.

Diamondbacks pitchers have a strikeout rate of just 16% when facing the leadoff batter in the inning this season — lowest in MLB.

Diamondbacks pitchers have a strikeout rate of just 17% in the first 5 innings this season — 2nd lowest in MLB.

Red Sox Pitching Stats & Trends

Red Sox pitchers have walked 7% of batters this season — 3rd best in MLB.

Red Sox pitchers have walked 6% of batters when facing the leadoff batter in the inning this season — tied for 3rd best in MLB.

Red Sox pitchers have a strikeout rate of 45% with two-strikes this season — 4th best in MLB.

Red Sox pitchers have allowed a run just 24% of the time after their offense scores this season — lowest in MLB.

More MLB Reading:

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

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