Arizona Diamondbacks vs Pittsburgh Pirates Picks and Prediction for Wednesday, July 29, 2026

The Arizona Diamondbacks visit the Pittsburgh Pirates at PNC Park in Pittsburgh, Pennsylvania, on Wednesday, July 29, 2026. The opening pitch is scheduled for 12:35 p.m. ET, with television coverage available on MLB.TV. Both teams enter the matchup with identical 55-52 overall records, although Arizona is 24-30 on the road while Pittsburgh is 29-26 at home. ESPN Analytics gives the Pirates a 53.1% chance of winning compared with 46.9% for the Diamondbacks. The game-time temperature is listed at 75 degrees. At the time of this writing the odds were not released. Be sure to check out our free MLB picks.

Starting Pitchers for Arizona and Pittsburgh

Arizona is scheduled to start Eduardo Rodriguez, who is 9-3 with a 2.64 ERA and a 1.24 WHIP across 122.2 innings. Rodriguez has allowed 108 hits and 13 home runs while recording 86 strikeouts and issuing 44 walks. Pittsburgh counters with Jared Jones, who owns a 2-1 record, a 3.72 ERA, and a 1.02 WHIP through 46 innings. Jones has surrendered 34 hits and six home runs while collecting 53 strikeouts against 13 walks. Arizona has the lower starting ERA and considerably more innings represented, while Pittsburgh’s starter enters with the lower WHIP and stronger strikeout-to-walk numbers.

Arizona Searches for a Road Turnaround

The Diamondbacks enter Wednesday with a 55-52 overall record and a 24-30 mark away from home. Arizona has lost three consecutive games, recently falling 3-2 in 10 innings against Pittsburgh and losing 10-7 and 5-3 to Washington. Before that three-game slide, the Diamondbacks earned a 3-2 victory over Washington and a 10-6 win over St. Louis. Arizona has therefore won two of its last five games, with three of those contests decided by two runs or fewer.

Arizona is batting .241 as a team with 481 runs, 862 hits, and 103 home runs. The Diamondbacks own a .313 on-base percentage and a .393 slugging percentage. Their pitching staff has produced a 4.23 ERA and a 1.30 WHIP while allowing opponents to bat .254. Arizona has issued 311 walks and recorded 723 strikeouts. The Diamondbacks have also compiled a 22-20 record in day games.

The most encouraging Arizona number is the 2.64 ERA belonging to its scheduled starter, which gives the Diamondbacks a possible way to contain a Pittsburgh offense that has otherwise posted the better team batting numbers. Arizona’s key weakness is its overall offensive production compared with the Pirates. The Diamondbacks trail Pittsburgh in batting average, runs, hits, home runs, on-base percentage, and slugging percentage. Their 24-30 road record also represents a concern against an opponent with a winning record at home.

Pittsburgh Brings the Stronger Offensive Profile

The Pirates are 55-52 overall and have earned a 29-26 record at PNC Park. Pittsburgh has won its last two games, recently defeating Arizona 3-2 in 10 innings and earning an 8-7 victory over Chicago. The Pirates previously lost 11-0 and 3-2 in 10 innings against Chicago before suffering a 2-0 defeat against New York. Pittsburgh has won two of its latest five games, with two of those contests requiring extra innings and three decided by a single run.

Pittsburgh carries a .260 team batting average with 556 runs, 966 hits, and 135 home runs. The Pirates have produced a .337 on-base percentage and a .421 slugging percentage. Their pitching staff enters with a 4.30 ERA and a 1.31 WHIP while holding opponents to a .240 batting average. Pittsburgh has registered 987 strikeouts and issued 381 walks. The Pirates have been particularly successful during the day, posting a 30-17 record in those games.

The Pirates’ clearest advantage is their offensive production. Pittsburgh has scored 75 more runs, collected 104 more hits, and hit 32 more home runs than Arizona. The Pirates also lead the Diamondbacks by 19 points in batting average, 24 points in on-base percentage, and 28 points in slugging percentage. Their pitching weakness appears in the 4.30 team ERA, which is slightly higher than Arizona’s 4.23 mark. However, Pittsburgh has the better opponent batting average and a substantial advantage in total strikeouts.

Arizona Diamondbacks vs Pittsburgh Pirates Picks and Prediction

Arizona Diamondbacks vs Pittsburgh Pirates Pick

• Pick: Pittsburgh Pirates Moneyline

Pittsburgh is the preferred side because it owns the stronger offensive profile, the better home record, and a 53.1% probability from ESPN Analytics. The Pirates have already recently defeated Arizona 3-2 in an extra-inning contest, and they enter Wednesday having won two consecutive games. Arizona has the advantage in the scheduled starter’s ERA, but Pittsburgh counters with a 1.02 starting WHIP and an offense that leads the Diamondbacks across every supplied major batting category.

Arizona Diamondbacks vs Pittsburgh Pirates Total Pick

• Take the under if the total is set at 8.5.

I would lean under 8.5 because the most recent meeting finished with only five combined runs, even though it extended into the 10th inning. Arizona’s scheduled starter owns a 2.64 ERA, while Pittsburgh’s carries a 1.02 WHIP. Three of Arizona’s last five games finished with eight or fewer combined runs, and four of Pittsburgh’s last five stayed below that mark. Although both teams have recently played one high-scoring game, the supplied starting-pitching numbers support another relatively controlled contest.

Final Score Prediction: Pittsburgh Pirates 4 – Arizona Diamondbacks 3

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