Giants vs Diamondbacks Prediction 5/13/25 MLB Picks Today

In this article, we will formulate a Giants vs Diamondbacks prediction for this MLB game on Tuesday, May 13, at Oracle Park in San Francisco, California. Let’s take a look at the prediction for this MLB matchup.

Arizona Diamondbacks Betting Preview

The Arizona Diamondbacks (22-20, 11-8 Away) lost the series to the Phillies and Mets, split with the Dodgers, and opened this series against the San Francisco Giants with a narrow 2-1 victory. Corbin Carroll hit a pair of solo homers to lead the team, while Merrill Kelly got the win after allowing one run on eight hits with eight strikeouts and no walks across 7.0 innings of work.

This season, the Diamondbacks average 4.95 runs per game (5th in the MLB) on a .248/.330/.438 triple-slash. When it comes to pitching, the Diamondbacks’ staff has a 4.51 ERA (24th) and 1.31 WHIP (19th). Corbin Carroll leads the Diamondbacks with a .282 batting average, 13 home runs, and 30 RBI this season.

Brandon Pfaadt will take the mound for the Diamondbacks on Tuesday. The 26-year-old right-hander has a 6-2 record in eight starts this year with a 3.28 ERA and 1.22 WHIP in 46.2 innings.

San Francisco Giants Betting Preview

The San Francisco Giants (24-18, 12-6 Home) defeated the Cubs and Rockies but then were swept for the first time this season, as the Twins were better in all three games. The Giants fell short 2-1 to the Diamondbacks in Game 1 of this series. Justin Verlander took the loss after allowing two runs on nine hits with five strikeouts and one walk in 6.0 innings.

This year, the Giants average 4.57 runs per game (13th in the MLB) on a .232/.305/.377 triple-slash. When it comes to pitching, the Giants’ staff has a 3.39 ERA (7th) and 1.22 WHIP (10th). Wilmer Flores leads the Giants with a .243 batting average, seven home runs, and 33 RBI this season.

The projected starting pitcher for the Giants is Robbie Ray, who is 5-0 in eight starts this season, with a 2.84 ERA and 1.20 WHIP in 44.1 innings.

Why the Giants will beat the Diamondbacks

• The Diamondbacks have lost each of their last three games as favorites following a win.
• The Giants have won six of their last nine games as home underdogs against the Diamondbacks.
• The Giants have covered the run line in eight of their last nine games as home underdogs against the Diamondbacks.
• The Diamondbacks have failed to cover the run line in each of their last four games following a win.

Total Runs Facts

• Eight of the Diamondbacks’ last nine night games against National League opponents have gone UNDER the total runs line.
• Thirteen of the Giants’ last 15 games as underdogs have gone OVER the total runs line.
• The ‘Inning 1 UNDER 0.5 runs’ market has hit in each of the Giants’ last four games as underdogs against NL West opponents.
• The ‘Inning 1 OVER 0.5 runs’ market has hit in 10 of the Diamondbacks’ last 12 games as road favorites against NL West opponents.

Matchup/League Facts

• The Giants rank 24th in the league for strikeouts against this season (363).
• The Giants rank 7th in the league for ERA this season (3.39).
• The Diamondbacks rank T4th in the league for home runs this season (56).
• The Diamondbacks rank 4th in the league for slugging percentage this season (.438).

Giants vs Mariners Prediction

The Diamondbacks won six of the previous ten H2H encounters. The Giants are on a four-game losing skid for the first time this season, and I don’t think they will suffer the fifth loss in a row. I am backing the Giants to win because of Robbie Ray, who has been rock-solid this year. Ray didn’t allow more than two runs in his last four starts, while he surrendered only one in his previous two starts. Brandon Pfaadt, on the other hand, has some strong numbers, but he allowed a .321 BA in 28 at-bats against the Giants. Back the Giants.