San Francisco Giants (35-50) vs. Arizona Diamondbacks (43-42) July 1, 2026 9:40 pm EDT The Line: Arizona Diamondbacks -120 / San Francisco Giants -101; Over/Under: 9.5 (Get latest betting odds)
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.
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.
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.
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.