Guardians vs Diamondbacks Prediction, Odds, Moneyline, Spread & Over/Under for Aug. 1

Odds updated as of 2:11 a.m.

MLB action on Saturday includes the Cleveland Guardians playing the Arizona Diamondbacks.

All the info you need to make smart bets on this game at FanDuel Sportsbook can be found below. Check out all of the latest MLB betting lines here.

Guardians vs Diamondbacks Game Info

• Cleveland Guardians (56-55) vs. Arizona Diamondbacks (58-52)
• Date: Saturday, August 1, 2026
• Time: 7:15 p.m. ET
• Venue: Progressive Field -- Cleveland, Ohio
• Coverage: FOX

Guardians vs Diamondbacks Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: CLE: (-154) | ARI: (+142)
• Spread: CLE: -1.5 (+130) | ARI: +1.5 (-160)
• Total: 8.5 -- Over: (-105) | Under: (-115)

Guardians vs Diamondbacks Probable Starting Pitchers

Probable Pitchers: Parker Messick (Guardians) - 8-6, 2.59 ERA vs Kohl Drake (Diamondbacks) - 0-0, 5.00 ERA

The Guardians will give the ball to Parker Messick (8-6, 2.59 ERA), who is eyeing win No. 9 on the season, and the Diamondbacks will counter with Kohl Drake. Messick's team is 11-10-0 against the spread in his starts this season. When Messick starts a game and his team is the favorite on the moneyline, they have a record of 7-8. Drake has started two games with set spreads, and the Diamondbacks failed to cover in both opportunities. The Diamondbacks have not been a moneyline underdog when Drake starts this season.

Guardians vs Diamondbacks Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Guardians win (58.8%)

Guardians vs Diamondbacks Moneyline

• The Guardians vs Diamondbacks moneyline has Cleveland as a -154 favorite, while Arizona is a +142 underdog on the road.

Guardians vs Diamondbacks Spread

• The Guardians are favored by 1.5 runs at home against the Diamondbacks. The Guardians are +130 to cover the spread, while the Diamondbacks are -160.

Guardians vs Diamondbacks Over/Under

• An over/under of 8.5 has been set for Guardians-Diamondbacks on Aug. 1, with the over being -105 and the under -115.

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Guardians vs Diamondbacks Betting Trends

• The Guardians have been chosen as favorites in 56 games this year and have walked away with the win 28 times (50%) in those games.
• This season Cleveland has come away with a win eight times in 12 chances when named as a favorite of at least -154 on the moneyline.
• Contests with the Guardians have gone over the total set by bookmakers in 49 of 105 chances this season.
• The Guardians have posted a record of 51-54-0 against the spread this season.
• The Diamondbacks have compiled a 26-34 record in games they were the underdog on the moneyline (winning 43.3% of those games).
• Arizona has a record of 5-5 in games it has played as a moneyline underdog with odds of +142 or longer (50%).
• The Diamondbacks have played in 109 games with a set over/under, and have combined with opponents to go over the total 46 times (46-59-4).
• The Diamondbacks have collected a 58-51-0 record against the spread this season.

Guardians Player Leaders

• Chase DeLauter has 96 hits, which leads Cleveland hitters this season, while batting .277 with 32 extra-base hits. He has an on-base percentage of .347 and a slugging percentage of .435.
• Among qualified hitters in baseball, he is 36th in batting average, 51st in on-base percentage, and 66th in slugging.
• Jose Ramirez is batting .236 with 18 doubles, 10 home runs and 45 walks, while slugging .395 with an on-base percentage of .334.
• He is 111th in batting average, 67th in on-base percentage and 106th in slugging among qualifying hitters.
• Brayan Rocchio has an OPS of .713, fueled by an OBP of .323 and a team-best slugging percentage of .390 this season.
• Steven Kwan leads Cleveland in OBP (.353) this season, fueled by 87 hits.
• Kwan takes a two-game hitting streak into this game. In his last five games he is hitting .316 with two doubles, two walks and an RBI.

Diamondbacks Player Leaders

• Ketel Marte has a .451 slugging percentage, which leads the Diamondbacks. He's batting .254 with an on-base percentage of .308.
• Including all qualified hitters in MLB, his batting average places him 76th, his on-base percentage ranks 114th, and he is 54th in slugging.
• Marte heads into this matchup on a five-game hitting streak. In his last five games he is batting .227 with a double, a home run, a walk and two RBIs.
• Corbin Carroll leads his team with 98 hits. He has a batting average of .247 while slugging .476 with an on-base percentage of .342.
• He ranks 91st in batting average, 57th in on-base percentage and 32nd in slugging percentage in MLB.
• Geraldo Perdomo is hitting .231 with 14 doubles, four triples, eight home runs and 68 walks.
• Gabriel Moreno's .391 on-base percentage paces his team.

Guardians vs Diamondbacks Head to Head

• 7/31/2026: 4-1 ARI (Favorite: Guardians, Spread: -1.5, Total: 8.5, Favorite Moneyline: -134, Underdog Moneyline: +124)
• 8/20/2025: 3-2 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 9, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 8/19/2025: 6-5 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -118, Underdog Moneyline: -100)
• 8/18/2025: 3-1 CLE (Favorite: Diamondbacks, Spread: -1.5, Total: 9, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 8/7/2024: 5-3 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 8, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 8/7/2024: 7-3 ARI (Favorite: Guardians, Spread: -1.5, Total: 8, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 8/5/2024: 7-6 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -118, Underdog Moneyline: -100)
• 6/18/2023: 12-3 CLE (Favorite: Diamondbacks, Spread: -1.5, Total: 9, Favorite Moneyline: -108, Underdog Moneyline: -108)
• 6/17/2023: 6-3 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -110, Underdog Moneyline: -106)
• 6/16/2023: 5-1 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -190, Underdog Moneyline: +160)

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