Arizona Diamondbacks vs San Diego Padres Picks and Predictions for Thursday, July 9, 2026

By: Cameron Ross Published 07/09/2026, 01:41 AM ET

Diamondbacks vs Padres Game Information

The Arizona Diamondbacks stay on the road Thursday night for game 4 of 4 inside Petco Park in San Diego, CA, at 9:40 PM against the San Diego Padres. Arizona is 46-46. This season, coming into Thursday having dropped 4 of the last 6 overall, including two in a row after their loss on Wednesday. The San Diego Padres stay home Thursday night at an even .500 this season, having won 3 of the last 4, including 2 in a row. Stay in the loop with our MLB Picks.

Diamondbacks Preview

Jose Cabrera got the start and took the loss for Arizona on Wednesday, giving up 4 runs on 4 hits across 4.1 innings of work. The Arizona bullpen struggled just as much, giving up 6 more runs on 9 hits over the next 3.2 innings of action. Tommy Troy carried the Arizona offense on Tuesday, driving in 2 of the 4 runs.

Padres Preview

Michael King got the start and took the win for San Diego on Wednesday, giving up just 1 run on 4 hits through 6 innings of work. The San Diego bullpen was shaky, giving up 3 more runs on 6 hits over the final 3 innings of the game. San Diego got a balanced scoring attack as Miguel Andujar, Xander Bogaerts, and Jackson Merril led the San Diego offense, driving in 2 runs each.

Diamondbacks vs Padres Pitching Matchup

Merrill Kelly will be on the mound Thursday for the Diamondbacks, looking to improve on his season. Kelly is 6-8 with a 5.71 ERA through 86.2 innings of work. Griffin Canning will be on the mound Thursday night for the Padres. Canning is having an abysmal year, coming into this game 1-6 with a 6.71 ERA through 51 innings of work.

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Diamondbacks vs Padres Pick

Both teams have had their issues this season as each is hovering around 500. Arizona will have the edge Thursday night as they have the slightly better pitcher with the better offense. Look for the Diamondbacks to do the job on both sides of the dish to finish this series with a road win in San Diego.

Pick: Arizona Diamondbacks +104
Secondary: Over 9
Lean: Ketel Marte Over 1.5 Bases

Final Score Prediction: Arizona Diamondbacks win 8-5.

Game Written Prior to completion of game on Wednesday.