Giants vs Diamondbacks Prediction 9/9/25 MLB Picks Today

The Arizona Diamondbacks and San Francisco Giants meet Tuesday in MLB action at Oracle Park. Here’s a Giants vs Diamondbacks Prediction. This article will include a Giants vs Diamondbacks Pick.

Arizona Diamondbacks Betting Preview

The Arizona Diamondbacks are 72-73 on the year and play the Twins, Giants, and Phillies next. The Arizona Diamondbacks are batting .250 on the season, have a .322 OBP, and a .435 slugging percentage. The Arizona Diamondbacks pitching staff has a 4.48 ERA and a 1.32 WHIP. Geraldo Perdomo leads the Arizona Diamondbacks with 150 hits and 91 RBI, while Corbin Carroll and Lourdes Gurriel Jr. have combined for 255 hits and 154 RBI.

Zac Gallen gets the ball for the Arizona Diamondbacks, and he is 11-13 with a 4.77 ERA and 154 strikeouts this season. Gallen is 7-5 with a 3.75 ERA and 111 strikeouts in his career against the San Francisco Giants.

San Francisco Giants Betting Preview

The San Francisco Giants are 73-71 on the year and play the Dodgers, Diamondbacks, and Dodgers next. The San Francisco Giants are batting .240 on the season, have a .314 OBP, and a .393 slugging percentage. The San Francisco Giants pitching staff has a 3.75 ERA and a 1.29 WHIP. Heliot Ramos leads the San Francisco Giants with 146 hits and 61 RBI while Jung Hoo Lee and Willy Adames have combined for 259 hits and 129 RBI.

Robbie Ray gets the ball for the San Francisco Giants, and he is 10-6 with a 3.31 ERA and 171 strikeouts this season. Ray is 2-0 with a 3.00 ERA and 16 strikeouts in his career against the Arizona Diamondbacks.

Arizona Diamondbacks @ San Francisco Giants Betting Trends: September 9, 2025

• Probable Starting Pitcher: Robbie Ray      Record this season: 10-6      ERA: 3.31
• Home Record: 4-3
• Last 5 against Diamondbacks: 2-0

Why the San Francisco Giants will win

• The Giants have won each of their last nine games as home favorites against NL West opponents following a home win.
• The Diamondbacks have lost seven of their last eight Tuesday games at Oracle Park.
• The Giants have covered the run line in eight of their last nine night games against National League opponents.
• The Diamondbacks have failed to cover the run line in each of their last four games at Oracle Park.
• The Giants have led after 5 innings in 12 of their last 13 home games against NL West opponents that held a losing record.
• The Giants have won the first inning in five of their last six home games.
• The Giants have led after 3 innings in seven of their last eight home games against NL West opponents that held a losing record.

• Probable Starting Pitcher: Zac Gallen      Record this season: 11-13      ERA: 4.77
• Road Record: 7-6
• Last 5 against Giants: 4-1

Why the Arizona Diamondbacks will win

• The Diamondbacks have won four of their last five games as underdogs against NL West opponents following a road loss.
• The Giants have lost seven of their last eight Tuesday games as home favorites against National League opponents.
• The Giants have failed to cover the run line in each of their last nine Tuesday games as home favorites.
• The Diamondbacks have covered the run line in 12 of their last 13 games as underdogs against the Giants following a road loss.
• The Diamondbacks have led after 5 innings in four of their last five games.
• The Diamondbacks have led after 3 innings in four of their last five games.

Total Runs Facts

• Each of the last four games between the Diamondbacks and Giants have gone OVER the total runs line.
• Three of the Diamondbacks’ last four games have gone OVER the total runs line.
• The ‘Inning 1 UNDER 0.5 runs’ market has hit in seven of the Giants’ last eight home games against NL West opponents.
• The ‘Inning 1 UNDER 0.5 runs’ market has hit in each of the Diamondbacks’ last four night games against National League opponents.

San Francisco Giants Player Prop Facts

• Jung Hoo Lee has hit a home run in each of the Giants’ last three home games against the Diamondbacks.
• Willy Adames has recorded at least one Double in each of his last five home appearances against the Diamondbacks.
• Dominic Smith has recorded at least one hit in each of his last 20 appearances in night games.
• Rafael Devers ranks 9th amongst qualified players for On Base Percentage (.378) this season.

Arizona Diamondbacks Player Prop Facts

• Gabriel Moreno has hit a home run in four of his last seven appearances with the Diamondbacks as underdogs against NL West opponents.
• Zac Gallen has recorded a win in each of his last five appearances against NL West opponents.
• Zac Gallen has recorded five or more strikeouts in each of his last 12 appearances against the Giants.
• Lourdes Gurriel Jr. has recorded at least one hit in each of his last 12 road appearances against the Giants.
• Corbin Carroll ranks 6th amongst qualified players for Slugging Percentage (.554) this season.

Matchup/League Facts

• The Giants rank 1st in the league for home runs allowed this season (124).
• The Giants rank 29th in the league for steals this season (64).
• The Diamondbacks rank T1st in the league for triples this season (35).
• The Diamondbacks rank 2nd in the league for RBIs this season (697).

Giants vs Diamondbacks Prediction

The Giants are going to be favored at home with Ray on the mound. Gallen has also had a down year overall. However, Ray has allowed 19 hits and 13 earned runs in his last 14 innings. Gallen has turned things around over the last month, allowing 33 hits and 10 runs in his last 41 innings. In 94 at bats against current Giants, Gallen is allowing a .181 batting average, .280 on base percentage and has 27 strikeouts. When Gallen is right, he’s one of the best pitchers in baseball. I’ll take the plus money with the Diamondbacks.