5.25
ERA
1.34
WHIP
7.1
K/9
82.1
IP
15
GS
3.4
BB/9
vs ATH — career
1.76ERA1GS.200OPP AVG7K
Pittsburgh Pirates vs Athletics
6:5
Final
H2H 2–1
ATH · Home · 45-65
Athletics
Starting pitchers
6.15
ERA
1.39
WHIP
10.8
K/9
41.0
IP
3
GS
3.1
BB/9
vs PIT — career
5.40ERA1GS.300OPP AVG6K
Starter form · last 5 starts
Season5.25
Last 52.79
↓2.46 ERA better in last 5
↓ ERA trending down lately
Matchup edge
Mitch Keller hotter lately (L5 2.79 ERA)·Pirates 6–4 L10
Projected hitters vs RHP / RHP
Pirates vs RHP
Avg OPS 0.7112 hot hittersTop: Rodríguez 0.935 · Lowe 0.933 · Reynolds 0.796
Projected sample — season splits vs pitcher hand, not official order.
Athletics vs RHP
Avg OPS 0.650Top: Cortes 0.806 · Williams 0.778 · Wilson 0.722
Projected sample — season splits vs pitcher hand, not official order.
Pittsburgh Pirates hitters vs RHP (projected)
Batter
AVG
OPS
HR
Athletics hitters vs RHP (projected)
Batter
AVG
OPS
HR
◆ Matchup preview
Pittsburgh Pirates at Athletics (2026-06-16). Mitch Keller vs Jack Perkins at Sutter Health Park.
Mitch Keller, pitching for the Pirates, enters with a 5.14 ERA and 1.31 WHIP over 77 innings in 14 starts this season, posting a 6.78 K/9 and 3.16 BB/9. Keller's recent performance has been somewhat inconsistent, including a strong 7-inning, 2-earned-run outing followed by a challenging 4-inning, 5-earned-run start, yet his overall ERA trend is noted as downward with a 66.7% quality start rate. Jack Perkins, starting for the Athletics, carries a higher 6.25 ERA and 1.36 WHIP across 36 innings, though his last five appearances have been notably brief, none exceeding 2.1 innings. Despite a higher 10.75 K/9 and a good 3.00 BB/9, Perkins' consistent short outings and 0% quality start rate suggest he functions more as an opener or bulk reliever, necessitating early bullpen involvement for the Athletics.
The Pittsburgh Pirates offense maintains a .252 batting average and a .736 OPS, having scored 361 runs with 86 home runs this season, while their pitching staff features a solid 4.26 ERA, 1.31 WHIP, and 9.11 K/9. The Pirates enter this matchup in better recent form, having secured six wins in their last ten games. Conversely, the Athletics' offense, while also batting .252, exhibits slightly more power with a .752 OPS and 95 home runs, though they have accumulated fewer runs at 331. The Athletics' pitching unit presents a higher 4.80 ERA and 1.43 WHIP, coupled with a lower 8.23 K/9, and their recent performance reflects this struggle, with only three wins in their last ten contests.
Recent head-to-head matchups from last season saw the Pirates take two of three games against the Athletics, with scores including a dominant 11-0 victory for Pittsburgh and two lower-scoring affairs at 2-0 and 4-3. The current total line is set at 10.5, a relatively high figure that reflects the potential for runs, particularly given Jack Perkins' elevated season ERA and his consistent short starts, which will likely expose the Athletics' bullpen early. This high total also aligns with the Athletics' slightly better offensive OPS and home run production, contrasting with the Pirates' stronger overall team pitching metrics.
Key facts
◆ Lineup notes
Most of the away batters have no MLB history against Jack Perkins. Spencer Horwitz, Brandon Lowe, Bryan Reynolds, Ryan O'Hearn, Nick Gonzales, Endy Rodríguez, Tyler Callihan, Jake Mangum, and Jared Triolo all have no prior plate appearances against the right-hander.
Several home batters have prior experience against Mitch Keller. Nick Kurtz, Tyler Soderstrom, and Carlos Cortes have each hit .500 against Keller in limited plate appearances; Kurtz is 1-for-2 with a 2.500 OPS, and Soderstrom and Cortes are also 1-for-2 with a 1.000 OPS. Shea Langeliers holds a 2-for-7 record, batting .286 with a 1.143 OPS. Jeff McNeil has struggled in 17 at-bats, going 2-for-17 with a .118 average and a .412 OPS, while Jacob Wilson is hitless in two at-bats with a .000 OPS. Zack Gelof is 0-for-1 in two plate appearances with a .500 OPS, and Lawrence Butler is 1-for-6, batting .167 with an .834 OPS. Henry Bolte has no MLB history against Mitch Keller.
Takeaway: The home lineup has significantly more batters with prior MLB history against the opposing starter compared to the away lineup.
Head to head (2025–2026)
2—1
Pittsburgh Pirates lead series
3 meetings total
2025-09-21
Athletics @ Pittsburgh Pirates
0–11
PIT
2025-09-20
Athletics @ Pittsburgh Pirates
0–2
PIT
2025-09-19
Athletics @ Pittsburgh Pirates
4–3
ATH
Team picture · 2026
PIT
ATH
Team AVG
0.253
0.252
Team OPS
0.739
0.751
Home runs
89
96
Runs scored
367
336
Team ERA
4.25
4.81
HR allowed
70
104
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