Pirates vs Diamondbacks Prediction, Odds, Moneyline, Spread & Over/Under for May 7
The MLB Thursday slate features the Pittsburgh Pirates taking on the Arizona Diamondbacks. All the information you need to place smart wagers on this matchup at FanDuel Sportsbook is listed below. Check out all the latest MLB betting lines here.
Pittsburgh Pirates (20-17) vs Arizona Diamondbacks (17-18)
Date: Thursday, May 7, 2026
Time: 3:40 p.m. ET
Venue: Chase Field — Phoenix, Arizona
Coverage: Dbacks.TV and SportsNet PT
Betting Info:
Moneyline: PIT (-112) | ARI (-104)
Spread: PIT -1.5 (+146) | ARI +1.5 (-178)
Total: 9 — Over (-110) | Under (-110)
Probable Pitchers:
Mitch Keller (Pirates) – 3-1, 2.85 ERA
Zac Gallen (Diamondbacks) – 1-2, 4.45 ERA
This contest’s pitching matchup is set, as the Pirates will send Mitch Keller to the mound (3-1, 2.85 ERA) against Zac Gallen for the Diamondbacks (1-2, 4.45 ERA). Keller and his team are 3-3-0 ATS this season when he starts. Keller’s team is 1-1 this season when he starts and they’re favored on the moneyline. The Diamondbacks have a 5-2-0 ATS record in Gallen’s seven starts that had a set spread. The Diamondbacks have a 2-3 record in Gallen’s five starts this season when they were the underdog on the moneyline.
All MLB win probability predictions and picks are according to numberFire.
Prediction: Diamondbacks win (53.6%)
Looking at the moneyline for Diamondbacks-Pirates, Arizona is the underdog at -104, and Pittsburgh is -112 playing on the road. The Pirates are 1.5-run road favorites on the runline against the Diamondbacks. The Pirates are +146 to cover, and the Diamondbacks are -178. An over/under of 9 has been set for Pirates-Diamondbacks on May 7, with the over -110 and the under -110.
Bet on Pittsburgh Pirates vs. Arizona Diamondbacks on FanDuel today! The Pirates have won in 14 of the 22 contests they have been named as odds-on favorites this year (63.6%). Pittsburgh is 13-8 in games when oddsmakers favor them by -112 or more on the moneyline. The Pirates and their opponents have hit the over in 19 of their 36 games with a total set by oddsmakers this season. In 36 games with a line this season, the Pirates are 18-18-0 against the spread.
The Diamondbacks have won nine of the 24 games they were moneyline underdogs this season (37.5%). When underdogs with odds of -104 or longer, Arizona is 9-15 (37.5%). The Diamondbacks have combined with opponents to go over the total 20 times this season for a 20-13-2 record against the over/under. The Diamondbacks have covered 65.7% of their games this season, going 23-12-0 ATS.
Brandon Lowe leads Pittsburgh in total hits (30) this season while batting .252 with 17 extra-base hits. He has an on-base percentage of .360 and a slugging percentage of .546. Among the qualifying batters in the majors, his batting average ranks 78th, his on-base percentage ranks 52nd, and he is 18th in slugging.
