Giants vs Diamondbacks Prediction, Odds, Moneyline, Spread & Over/Under for Sept. 9

Odds updated as of 9:12 p.m.

In MLB action on Tuesday, the San Francisco Giants take on the Arizona Diamondbacks.

Before checking out the MLB betting lines on FanDuel Sportsbook, we've got you covered, in terms of the most important info regarding this game.

Giants vs Diamondbacks Game Info

• San Francisco Giants (73-71) vs. Arizona Diamondbacks (72-73)
• Date: Tuesday, September 9, 2025
• Time: 9:45 p.m. ET
• Venue: Oracle Park -- San Francisco, California
• Coverage: NBCS-BA and ARID

Giants vs Diamondbacks Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SF: (-116) | ARI: (-102)
• Spread: SF: +1.5 (-205) | ARI: -1.5 (+168)
• Total: 8 -- Over: (-118) | Under: (-104)

Giants vs Diamondbacks Probable Starting Pitchers

Probable Pitchers: Robbie Ray (Giants) - 10-6, 3.31 ERA vs Zac Gallen (Diamondbacks) - 11-13, 4.77 ERA

This contest's pitching matchup is set, as the Giants will send Robbie Ray (10-6) to the mound, while Zac Gallen (11-13) will answer the bell for the Diamondbacks. Ray and his team have a record of 18-10-0 against the spread when he starts. When Ray starts a game and his team is the favorite on the moneyline, they have a record of 14-5. The Diamondbacks have a 13-16-0 ATS record in Gallen's 29 starts that had a set spread. The Diamondbacks have a 7-5 record in Gallen's 12 starts this season when they were the moneyline underdog.

Giants vs Diamondbacks Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Giants win (52.2%)

Giants vs Diamondbacks Moneyline

• The moneyline numbers for Giants vs. Diamondbacks reveal San Francisco as the favorite (-116) and Arizona as the underdog (-102) on the road.

Giants vs Diamondbacks Spread

• The Diamondbacks are 1.5-run favorites against the spread for this matchup with the Giants. The Diamondbacks are +168 to cover, while the Giants are -205 to cover as a 1.5-run underdog on the runline.

Giants vs Diamondbacks Over/Under

• The over/under for Giants-Diamondbacks on Sept. 9 is 8. The over is -118, and the under is -104.

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Giants vs Diamondbacks Betting Trends

• The Giants have won in 46, or 53.5%, of the 86 contests they have been named as odds-on favorites in this year.
• This season San Francisco has come away with a win 44 times in 81 chances when named as a favorite of at least -116 on the moneyline.
• The Giants and their opponents have gone over the total this season in 68 of their 143 opportunities.
• The Giants are 67-76-0 against the spread in their 143 games that had a posted line this season.
• The Diamondbacks have won 28 of the 58 games they were listed as the moneyline underdog this season (48.3%).
• When it has played as a moneyline underdog with odds of -102 or longer, Arizona has gone 26-28 (48.1%).
• The Diamondbacks have played in 141 games with an over/under set, and have combined with their opponents to go over the total 70 times (70-65-6).
• The Diamondbacks have collected a 69-72-0 record against the spread this season (covering 48.9% of the time).

Giants Player Leaders

• Rafael Devers leads San Francisco in OBP (.378) and total hits (141) this season. He's batting .261 batting average while slugging .488.
• Among all qualifying hitters in the majors, he ranks 70th in batting average, ninth in on-base percentage, and 27th in slugging.
• Jung Hoo Lee has 30 doubles, 11 triples, eight home runs and 44 walks. He's batting .271 and slugging .420 with an on-base percentage of .332.
• Among qualified batters, his batting average ranks him 39th, his on-base percentage 68th, and his slugging percentage 82nd.
• Willy Adames has collected 121 base hits, an OBP of .318 and a slugging percentage of .428 this season.
• Heliot Ramos has an OPS of .743, fueled by an OBP of .338 and a team-best slugging percentage of .405 this season.

Diamondbacks Player Leaders

• Geraldo Perdomo has a .443 slugging percentage, which paces the Diamondbacks. He's batting .281 with an on-base percentage of .379.
• Including all the qualified hitters in the big leagues, he is 23rd in batting average, eighth in on-base percentage and 68th in slugging percentage.
• Corbin Carroll has collected 131 hits to pace his team. He has a batting average of .257 while slugging .554 with an on-base percentage of .334.
• Including all qualified hitters, he is 81st in batting average, 65th in on-base percentage and sixth in slugging percentage.
• Ketel Marte a has .388 on-base percentage to lead the Diamondbacks.
• Gabriel Moreno has 11 doubles, a triple, eight home runs and 18 walks while hitting .283.

Giants vs Diamondbacks Head to Head

• 9/8/2025: 11-5 SF (Favorite: Giants, Spread: -1.5, Total: 7.5, Favorite Moneyline: -174, Underdog Moneyline: +146)
• 7/3/2025: 7-2 SF (Favorite: Giants, Spread: -1.5, Total: 8.5, Favorite Moneyline: -126, Underdog Moneyline: +108)
• 7/2/2025: 6-5 SF (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -146, Underdog Moneyline: +124)
• 7/1/2025: 8-2 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 9, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 6/30/2025: 4-2 ARI (Favorite: Giants, Spread: -1.5, Total: 8.5, Favorite Moneyline: -148, Underdog Moneyline: +126)
• 5/14/2025: 8-7 ARI (Favorite: Giants, Spread: -1.5, Total: 8, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 5/13/2025: 10-6 SF (Favorite: Diamondbacks, Spread: -1.5, Total: 7.5, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 5/12/2025: 2-1 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 8, Favorite Moneyline: -118, Underdog Moneyline: -100)
• 9/25/2024: 8-2 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -250, Underdog Moneyline: +205)
• 9/24/2024: 11-0 SF (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -152, Underdog Moneyline: +128)

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