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Arizona Diamondbacks vs Pittsburgh Pirates

Tuesday, Jul 28, 2026PNC Park6:40 PM ETPreview
AZ · Away · 55-52

Arizona Diamondbacks

NL West · 2nd · 12.5 GB
:
6:40 PM ET
H2H 24
PIT · Home · 55-52

Pittsburgh Pirates

Starting pitchers
Starter form · last 5 starts
Season4.43
Last 52.40
2.03 ERA better in last 5
5 days restQS 20%Blow-up 0/5
106/30
007/06
207/11
207/18
207/23

↑ ERA trending up lately

Season4.47
Last 54.24
0.23 ERA better in last 5
6 days restQS 20%Blow-up 0/5
106/25
506/30
407/05
207/11
007/22

↓ ERA trending down lately

Matchup edge
Pirates 55 L10
PitchingEven
Arizona40Pirates43
HittingPirates
Arizona41Pirates57
BullpenArizona
Arizona56Pirates52
Lineup not yet announced · posted ~1–2 hrs before first pitch
Projected hitters vs RHP / RHP
Arizona vs RHP
Avg OPS 0.8141 hot hitterTop: Lawlar 0.900 · Moreno 0.828 · Locklear 0.825

Projected sample — season splits vs pitcher hand, not official order.

Pirates vs RHP
Avg OPS 1.0865 hot hittersTop: Jr. 1.667 · Ross 1.000 · Rodríguez 0.996

Projected sample — season splits vs pitcher hand, not official order.

Arizona Diamondbacks hitters vs RHP (projected)
Batter
AVG
OPS
HR
0.318
0.900
1
0.297
0.828
7
0.273
0.825
1
0.213
0.768
15
0.252
0.749
19
Pittsburgh Pirates hitters vs RHP (projected)
Batter
AVG
OPS
HR
0.292
0.882
14
0.200
1.000
1
0.313
0.996
5
0.291
0.883
10
◆ Matchup preview

Arizona Diamondbacks at Pittsburgh Pirates (2026-07-28). Brandon Pfaadt vs Bubba Chandler at PNC Park.

Starters — Pfaadt has a 4.43 ERA, 1.32 WHIP, and 65.0 innings with 6.23 K/9, 2.77 BB/9, and 1.11 HR/9. His last three starts were steady: 6.0 IP, 2 ER, 1 K, 2 BB; 5.1 IP, 2 ER, 3 K, 0 BB; and 5.1 IP, 2 ER, 2 K, 0 BB. The recent trend is up, driven by run prevention and improved control, though the strikeout rate remains modest. Chandler carries a 4.47 ERA, 1.39 WHIP, and 100.2 innings with 8.05 K/9, 5.01 BB/9, and 0.89 HR/9. His last three starts were 6.1 IP, 0 ER, 5 K, 1 BB; 4.2 IP, 2 ER, 6 K, 3 BB; and 4.0 IP, 4 ER, 0 K, 4 BB. The trend is down overall despite the strong most recent outing, with command volatility still the key issue.

Teams — Arizona owns a .706 OPS and 481 runs scored, with a .241 team average. The Diamondbacks pitching staff has a 4.23 ERA and 1.30 WHIP, and they are 6-4 over their last 10 games. Pittsburgh has been the better offensive club by the numbers, posting a .758 OPS, 556 runs, and a .260 team average. The Pirates staff sits at a 4.30 ERA and 1.31 WHIP, and they are 5-5 in their last 10. This matchup pairs a slightly cleaner Arizona pitching profile against a more productive Pittsburgh lineup.

Key facts
Arizona starters’ last three starts: Pfaadt allowed 2 ER or fewer in all threePittsburgh offense leads this matchup with a .758 OPS and 556 runsChandler’s 5.01 BB/9 is the biggest control risk on either side
Head to head (2025–2026)
24
Pittsburgh Pirates lead series
6 meetings total
2025-07-27
Arizona Diamondbacks @ Pittsburgh Pirates
06
PIT
2025-07-26
Arizona Diamondbacks @ Pittsburgh Pirates
02
PIT
2025-07-25
Arizona Diamondbacks @ Pittsburgh Pirates
10
AZ
2025-05-28
Pittsburgh Pirates @ Arizona Diamondbacks
101
PIT
2025-05-27
Pittsburgh Pirates @ Arizona Diamondbacks
96
PIT
Team picture · 2026
64
LLLWWWWLWW
55
WWLLWLLWWL
AZ
PIT
Team AVG
0.241
0.260
Team OPS
0.706
0.758
Home runs
103
135
Runs scored
481
556
Team ERA
4.23
4.30
HR allowed
129
110

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