MLB Prop Bets: Arizona Diamondbacks vs Pittsburgh Pirates (May 7, 2026)
The Pittsburgh Pirates (20-17) face the Arizona Diamondbacks (17-18) at Chase Field on Thursday at 3:40pm (ET). Let's take a look at the MLB Prop Bets for the matchup. Mitch Keller is the probable pitcher for the Pirates, while Zac Gallen is the probable pitcher for the Diamondbacks. The Pirates are favored to win at -112, while the Diamondbacks are at -108. The total runs line is set at 9.0, with OVER at -108 and UNDER at -112.
- The Pirates (+144) have a 19-18 Run Line record this season, while the Diamondbacks (-175) hold a record of 22-13.
- The Pirates have a 19-17-1 O/U record this season (meaning 19 games have gone over the total runs line, 17 have gone under and one has resulted in a push). The Diamondbacks have an 18-13-4 O/U record.
Scoring Insights
- The Pirates are averaging 4.9 runs per game this season (7th in the league). Comparatively, the Diamondbacks are averaging 4.5 (12th).
- In the field, the Pirates are allowing 4.3 runs per game this season (13th in the league), while the Diamondbacks are allowing an average of 5.2 runs (27th).
Let's take a look at how these teams perform in some other key statistical areas.
Batting Insights:
Batting Average
- Looking at their batting averages this season, the Pirates are at .247 (ranking 10th in the Major leagues), while the Diamondbacks are batting .244 (12th).
Home Runs
- In terms of total home runs this season, the Diamondbacks have hit 34 (T22nd in the Major Leagues). Meanwhile, the Pirates have managed 39 (T15th).
Runs Batted In
- Finally, looking at their runs batted in, the Pirates have recorded 175 RBIs to rank T6th in the MLB this season. Comparatively, the Diamondbacks have recorded 153 RBIs to rank 15th.
Pitching Insights:
Earned Run Average
- The Diamondbacks have an earned run average of 4.80 this season (27th in the Majors), while The Pirates have an ERA of 3.75 (8th).
Strikeouts
- Turning our attention to total strikeouts, the Pirates have recorded an impressive 342 this season, ranking T2nd in the MLB. Contrastingly, the Diamondbacks rank 29th for total strikeouts, recording only 258.
Opponent Batting Average
- Opponents are batting an average of .254 against the Diamondbacks this season (20th in the Major Leagues). Comparatively, the Pirates' opponents are at .219 (3rd).
First Innings Moneyline
- Here are their first innings moneyline records in 2026.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Pirates | 13-5-19 | 7-3-10 | 6-2-9 | 9-3-9 | 4-2-10 | 0-0-0 | 4-2-4 |
| Diamondbacks | 8-11-16 | 4-5-6 | 4-6-8 | 3-2-4 | 5-9-12 | 0-0-2 | 1-4-5 |
Lead After Three Innings
The Pirates are -120 to lead after three innings, while the Diamondbacks are -110.
- Here are their records after the first three innings in 2026.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Pirates | 17-9-11 | 10-4-6 | 7-5-5 | 12-5-4 | 5-4-7 | 0-0-0 | 4-4-2 |
| Diamondbacks | 10-18-7 | 5-5-5 | 4-12-2 | 5-1-3 | 5-17-4 | 1-1-0 | 2-8-0 |
NRFI/YRFI
The NRFI market is paying -115 and the YRFI is paying -115.
- The NRFI is 19-18 in Pirates games this season. The Diamondbacks have a 14-21 NRFI record.
Last Time They Met
The Pirates recorded an 1-0 victory over the Diamondbacks at Chase Field yesterday. Brandon Lowe was unstoppable in that matchup, hitting a home run, a single and recording an RBI.
