Arizona Diamondbacks (45-47) vs. San Diego Padres (46-46) July 9, 2026 9:40 pm EDT The Line: San Diego Padres -126 / Arizona Diamondbacks 104; Over/Under: 8.5 (Get latest betting odds)
In this article, we will formulate a Diamondbacks vs Padres Prediction for this MLB matchup on Thursday, July 9 th in the fourth game of this series. Let’s take a look at the prediction for this MLB matchup.
The San Diego Padres have a 46-46 record this season and are sitting in the 2nd place of the NL West. They have a 25-22 home record and are coming off a 10-4 home win against the Diamondbacks. They will face the Blue Jays and the Royals next.
The San Diego Padres have a .226 batting average this season, .301 OBP and .373 Slugging percentage. San Diego’s pitching staff has a 4.21 ERA and 1.34 WHIP. Fernando Tatis Jr. is the team’s best hitter with a .284 batting average. Manny Machado leads the team in RBI with 51, adding a team-high 18 home runs.
Griffin Canning (R) is the projected starting pitcher for the San Diego Padres, and he has a 1-6 record, 6.71 ERA and 1.61 WHIP.
The Arizona Diamondbacks have a 45-47 record this season and are sitting in the 3rd place of the NL West. They have a 18-27 away record and are coming off a 4-10 road loss against the Padres. They will face the Dodgers and the Cardinals next.
The Arizona Diamondbacks have a .236 batting average this season, .307 OBP and .383 Slugging percentage. Arizona’s pitching staff has a 4.24 ERA and 1.28 WHIP. Ketel Marte is the team’s best hitter with a .266 batting average. He also leads the team in RBI with 54, adding a team-high 17 home runs.
Merrill Kelly (R) is the projected starting pitcher for the Arizona Diamondbacks, and he has a 6-8 record, 5.71 ERA and 1.56 WHIP.
The Padres are 8-2 in their last 10 meetings against the Diamondbacks and are 5-1 in their last 6 meetings in San Diego.
In this Diamondbacks vs Padres Prediction, the Padres are coming as -125 home favorites. I don’t like either pitcher in this matchup, as they both have a combined 12.42 ERA and 1.50+ WHIP each. They both have been in very bad form, as Kelly has given up 16 runs across his last four starts while Canning has a 6.75 ERA across his last three starts. Yesterday’s game between those two teams had 14 total runs and I expect another high-scoring affair today. Take the over 8.5 runs.