Arizona Diamondbacks vs. San Diego Padres Picks and Prediction for Tuesday, July 7, 2026

By: Kim Smith Published 07/07/2026, 01:15 AM ET
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The Arizona Diamondbacks and San Diego Padres meet on Tuesday, July 7, 2026, at Petco Park in San Diego, California. First pitch is scheduled for 9:40 PM ET, and the game will be televised on ESPN Unlmtd and MLB.TV. At the time of this writing the odds were not released. Be sure to check out our free MLB picks before making your selections.

Starting Pitching Preview

Arizona is scheduled to start Zac Gallen in Tuesday nightโ€™s matchup. Gallen enters the contest with a 3-8 record, a 6.36 ERA, a 1.57 WHIP, and 92.0 innings pitched. He has allowed 116 hits while striking out 56 batters, walking 28, and surrendering 17 home runs. San Diego has not yet announced a starting pitcher for this game.

Arizona Tries to Get Back to .500

The Diamondbacks enter Tuesdayโ€™s contest with a 44-45 overall record and a 17-25 road record. Arizona has won two of its last five games, recently defeating Milwaukee and San Francisco while recently losing to Milwaukee twice and San Francisco once. The Diamondbacks have been competitive over the past week, but they continue searching for consistency as they begin this road series.

Arizona is batting .236 with 377 runs, 698 hits, and 79 home runs. The Diamondbacks own a .307 on-base percentage and a .382 slugging percentage. Their pitching staff has produced a 4.28 ERA with a 1.29 WHIP while allowing opponents to hit .252. Arizona has issued 259 walks and recorded 605 strikeouts. The Diamondbacks are 27-27 in night games.

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The biggest challenge for Arizona has been its offensive production. The Diamondbacks have scored 377 runs and hit 79 home runs, both lower than San Diegoโ€™s home run total and similar to the Padresโ€™ overall offensive output. Their pitching has generally been more effective than their offense, but generating runs consistently has been difficult.

San Diego Returns Home Looking for Momentum

The Padres come into this matchup with a 44-45 overall record and a 23-21 record at Petco Park. San Diego has won one of its last five games, recently defeating the Dodgers while recently losing four games to the Dodgers and Cubs. Despite those recent setbacks, the Padres return home hoping to reverse their fortunes.

San Diego is batting .224 with 348 runs, 654 hits, and 94 home runs. The Padres have a .301 on-base percentage and a .373 slugging percentage. Their pitching staff owns a 4.22 ERA with a 1.34 WHIP while allowing opponents to hit .247. San Diego has issued 324 walks and recorded 728 strikeouts. The Padres are 24-30 in night games.

The Padresโ€™ biggest statistical advantage entering this contest is their power production and strikeout total. San Diego has hit more home runs and recorded more strikeouts than Arizona this season. Their pitching staff also owns a slightly lower ERA and has held opponents to a lower batting average, giving them a slight edge on the mound.

Arizona Diamondbacks vs. San Diego Padres Picks and Prediction

Arizona Diamondbacks vs. San Diego Padres Pick

  • Pick: San Diego Padres Moneyline

Iโ€™m backing the Padres because they receive the advantage from the matchup predictor and own slight pitching advantages entering this contest. San Diego has the lower team ERA, has limited opposing hitters to a lower batting average, and has generated more strikeouts than Arizona. Combined with home field, those factors make the Padres my selection.

Arizona Diamondbacks vs. San Diego Padres Total Pick

  • Pick: Under 8.5

I would take the under if the total is set at 8.5. Neither offense has been among the stronger units in this matchup based on runs scored, and both clubs have slugging percentages below .390. Arizona has a team ERA of 4.28 while San Diego enters at 4.22, so I think this game stays below the total.

Final Score Prediction: San Diego Padres 4 โ€“ Arizona Diamondbacks 3

This prediction was written before the completion of game play on Monday.

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