Giants vs Diamondbacks Prediction 7/1/26 MLB Picks Today

In this article, we will formulate a Giants vs Diamondbacks Prediction for this MLB matchup on Wednesday, July 1^st in the third game of this series. Let’s take a look at the prediction for this MLB matchup.

Arizona Diamondbacks Preview

The Arizona Diamondbacks have a 43‑42 record this season and are sitting in the 3rd place of the NL West. They have a 26‑17 home record and are coming off an 8‑2 home win against the Giants. They will face the Brewers and the Padres next.

The Diamondbacks have a .238 batting average this season, .309 OBP and .388 Slugging percentage. Arizona’s pitching staff has a 4.30 ERA and 1.29 WHIP. Corbin Carroll is the team’s best hitter with a .272 batting average. Ketel Marte leads the team in RBI with 53, adding a team‑high 17 home runs.

Zac Gallen (R) is the projected starting pitcher for the Diamondbacks, and he has a 3‑7 record, 6.15 ERA and 1.58 WHIP.

San Francisco Giants Preview

The San Francisco Giants have a 35‑50 record this season and are sitting in the 4th place of the NL West. They have a 17‑28 road record and are coming off a 2‑8 road defeat against the Diamondbacks. They will face the Rockies and the Blue Jays next.

The Giants have a .254 batting average this season, .307 OBP and .417 Slugging percentage. San Francisco’s pitching staff has a 4.37 ERA and 1.37 WHIP. Luis Arraez is the team’s best hitter with a .331 batting average. Rafael Devers leads the team in RBI with 44, while Casey Schmitt adds a team‑high 16 home runs.

Trevor McDonald (R) is the projected starting pitcher for the Giants, and he has a 2‑6 record, 4.94 ERA and 1.35 WHIP.

San Francisco Giants @ Arizona Diamondbacks Betting Trends: July 1, 2026

• Probable Starting Pitcher: Zac Gallen      Record this season: 3-7      ERA: 6.15
• Home Record: 3-3
• Last 5 against Giants: 4-1

Why the Arizona Diamondbacks will win

• The Giants have lost each of their last nine night games against NL West opponents.
• The Diamondbacks have won each of their last eight games against the Giants.
• The Giants have failed to cover the run line in eight of their last nine night games against NL West opponents.
• The Diamondbacks have covered the run line in five of their last six games against National League opponents.
• The Giants have trailed after 3 innings in seven of their last eight games as road underdogs against NL West opponents.
• The Diamondbacks have led after 5 innings in seven of their last eight games against NL West opponents that held a losing record.
• The Giants have lost the first inning in each of their last four games as road underdogs.

• Probable Starting Pitcher: Trevor McDonald      Record this season: 2-6      ERA: 4.94
• Road Record: 1-2
• Last 5 against Diamondbacks: 0-1

Why the San Francisco Giants will win

• The Giants have won each of their last four Wednesday games as underdogs.
• The Diamondbacks have lost four of their last five night games against National League opponents following a home win.
• The Giants have covered the run line in seven of their last eight road games against teams that held a winning record.
• The Diamondbacks have failed to cover the run line in four of their last five games.

Total Runs Facts

• There has been at least one run scored in the first inning in each of the last eight night games between the Giants and Diamondbacks.
• There has been at least one run scored in the first inning in each of the Giants’ last eight night games at Chase Field.

Arizona Diamondbacks Player Prop Facts

• Ketel Marte has hit a home run in each of the Diamondbacks’ last four games.
• Zac Gallen has recorded a win in each of his last six home appearances against the Giants.
• Zac Gallen has recorded five or more strikeouts in each of his 16 previous home appearances against NL West opponents that held a losing record.
• Nolan Arenado has recorded at least one hit in each of his last 10 home appearances against the Giants.
• Corbin Carroll is one of only two players to record 10+ Home Runs and 4+ Triples this season.

San Francisco Giants Player Prop Facts

• Trevor McDonald has recorded four or more strikeouts in eight of his last nine appearances against opponents that held a winning record.
• Rafael Devers has recorded at least one hit in each of the Giants’ last 10 night games against NL West opponents that held a winning record.
• Eric Haase has hit at least one home run in four of his last seven road appearances against NL West opponents that held a winning record.
• Luis Arraez ranks 2nd in the league in Hits (105) this season.

Matchup/League Facts

• The Diamondbacks rank T1st in the league for triples this season (20).
• The Diamondbacks rank 30th in the league for strikeouts this season (574).
• The Giants rank 1st in the league for doubles this season (162).
• The Giants rank 30th in the league for steals this season (27).

Giants vs Diamondbacks Prediction

The Diamondbacks have won their last 8 meetings against the Giants, having won their last five meetings in Arizona.

In this Giants vs Diamondbacks Prediction, the Diamondbacks are coming as -120 home favorites. I don’t trust either pitcher in this matchup, as they both have a combined 11.09 ERA and Gallen has been steadily terrible for the Dbacks, having given up 4+ runs in five of his last six starts. McDonald has also been in poor form for the Giants, with 3+ runs in four of his last five starts, so I expect a high-scoring affair. Take the over 9.5 in this one.