San Diego Padres vs Arizona Diamondbacks Preview, 8/4/2026 MLB Selections, Top Wagers & Odds

Home » San Diego Padres vs Arizona Diamondbacks Preview, 8/4/2026 MLB Selections, Top Wagers & Odds

  • Matchup: San Diego Padres vs Arizona Diamondbacks
  • Scheduled Date: Tuesday, August 4, 2026
  • Venue: Chase Field, Phoenix, AZ
  • Broadcast: DBACKS.TV
  • Betting Odds: San Diego (-182) Arizona (+150)

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Chase Field will host the Arizona Diamondbacks (59-53) as they face off against the San Diego Padres (58-54) on Tuesday. The current moneyline shows San Diego favored at -182, while Arizona sits at +150. The projected total for this matchup is 8 runs, with JP Sears and Eduardo Rodriguez slated to be the starting pitchers.

MLB Predictions for Jackson Merrill & San Diego Padres

This season, the Padres have recorded 165 doubles and launched 121 home runs. Their slugging percentage stands at .384, having faced 924 strikeouts and drawn 383 walks. As a result, the Padres average 4.2 runs per game, ranking 21st in the league. With a total of 458 RBIs and 866 hits, their team batting average lingers at .235, having scored 472 runs and achieving a team OBP of .312.

The team has a strikeout-to-walk ratio of 2.35, while the pitching staff maintains a WHIP of 1.32. Padres pitchers have yielded 125 home runs and 484 runs in total, which ranks 13th in the league. They’ve allowed 919 hits (averaging 8.4 hits per 9 innings) and 455 earned runs, yielding a collective ERA of 4.14, placing them 15th in MLB; they’ve also recorded 915 strikeouts against 389 walks, with a FIP of 4.22 this season.

The San Diego bullpen has trotted out 382 pitchers so far this season, inheriting 192 runners with a 31.8% scoring rate. The relievers have accumulated 69 holds (9th in the league), entered games with runners on base 113 times, and faced 132 high-leverage situations. With 34 saves on the year, they’ve blown 15 of 49 save opportunities, resulting in a save rate of 69.4% across 121 situations.

The Padres’ defensive stats reveal 2,967 putouts, 985 assists, and 45 errors, resulting in a fielding percentage of .989, ranking 4th in the league. They’ve executed 92 double plays, converting 70.0% of balls in play into outs over 8,901 innings, which places them 13th in baseball.

JP Sears has taken the mound for 590 innings, recording 491 strikeouts in his career, with a lifetime ERA of 4.54 after allowing 298 earned runs. His WHIP stands at 1.274, having surrendered 580 hits (8.8 hits per nine innings) and 172 walks. Holding a career record of 34-45, his FIP is 4.47, and he has faced 2,507 batters in MLB.

The Arizona Diamondbacks have achieved an OBP of .313 this season, alongside a batting average of .241. They have been struck out 817 times (28th in MLB) with 907 hits recorded. Arizona boasts 107 home runs and has racked up 482 RBIs, posting a SLG% of .392 with an average of 4.54 runs per game (12th in the league). They’ve hit 194 doubles and registered 508 runs while drawing 369 walks.

Arizona’s pitching staff holds a team WHIP of 1.297 and a FIP of 4.44, complemented by a strikeout-to-walk ratio of 6.90 (760 strikeouts to 327 walks). They rank 22nd in the league for total hits allowed (961), having given up 134 home runs, along with allowing 4.59 runs per 9 innings (17th in MLB). The team’s overall ERA is 4.21, having surrendered 506 runs with 465 earned runs.

The Diamondbacks’ relief pitchers have a 26.1% inherited score rate from 142 inherited runners. They’ve appeared in 121 high-leverage situations and 97 times with runners on base. In 111 save opportunities, they’ve achieved 67 holds, with 14 blown saves, ranking 13th in MLB for a save rate of 67.4%. This season, Arizona has utilized 374 bullpen pitchers.

Across 8,937 innings, the Diamondbacks’ defensive efficiency is at 71.0% (8th in MLB). They’ve completed 98 double plays and boast a .990 fielding percentage (1st in the league), with 983 assists, 42 errors, and 2,979 putouts recorded this season.

Eduardo Rodriguez (career record of 104-69) has an ERA of 4.03, allowing 8.7 hits per 9 innings throughout his career. He maintains a K/BB ratio of 2.77 and has faced 6,112 batters. With a WHIP of 1.320 and a FIP of 4.0, Rodriguez has allowed 643 earned runs while conceding 1,393 hits and achieving 1,385 strikeouts over 1,434 innings pitched.

Who do you predict will win in tonight’s MLB game, covering the spread or taking the moneyline?

Prediction: Choose Arizona (+150)

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Pick: Arizona Diamondbacks (+150)
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