Red Sox vs. Diamondbacks Dunkel MLB Picks, Predictions and Prop Bets - Aug. 18

The Arizona Diamondbacks are looking for Gabriel Moreno to continue an 11-game hitting streak versus the Boston Red Sox, on Tuesday at 7:10 p.m. ET, at Fenway Park. Ranger Suarez (4-3, 3.25 ERA) will start for the Red Sox, who are 67-58 this season and third in the AL East. Merrill Kelly (8-10, 5.11 ERA) is expected to start for the Diamondbacks, who are 66-60 and third in the NL West.

The Red Sox are moderate favorites on the moneyline (-171) at home over the Diamondbacks (+149). The contest has an over/under set at 8.

Red Sox vs. Diamondbacks Odds, Game Time

• Game day: Tuesday, August 18, 2026
• Game time: 7:10 p.m. ET
• Location: Boston, Massachusetts
• Stadium: Fenway Park
• Favorite: Red Sox (-171)
• Underdog: Diamondbacks (+149)
• Over/under: 8

How to Watch Red Sox vs. Diamondbacks

• TV Channel: NESN and ARID
• Live Stream: Fubo (Watch for free)

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Red Sox vs. Diamondbacks: Betting the Moneyline

• The Red Sox have been favored on the moneyline 85 total times this season. They've finished 45-40 in those games.
• Arizona has won in 34, or 46.6%, of the 73 contests it has been named as odds-on underdogs in this year.
• Boston has entered 11 games this season favored by -171 or more and is 6-5 in those contests.
• This year, the Diamondbacks have won eight of 15 games when listed as at least +149 or worse on the moneyline.
• The implied moneyline probablility in this matchup gives the Red Sox a 63.1% chance to win.
• The moneyline set for this matchup implies the Diamondbacks have a 40.2% chance of coming away with a victory in the contest.

Red Sox vs. Diamondbacks: Betting the Spread & Total

• The Red Sox have combined with opponents to hit the over on the total 56 times this season for a 56-64-5 record against the over/under.
• Arizona and its opponents have hit the over in 54 of its 126 games with a total this season.
• The Red Sox have a 62-63-0 record against the spread this season (covering 49.6% of the time).
• The Diamondbacks have an against the spread mark of 69-57-0 in 126 games with a line this season.