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DET
mlbDET

Jack Flaherty

Starting pitcher · DET · 2026: 19 GS (20 G) · 88.1 IP · 10.5 K/9 · 4.3 BB/9

4.48
ERA
1.39
WHIP
103
K
88.1
IP

Recent form

Last 15 games

Strikeouts per outing, oldest → newest. Dashed line = his 2026 average (5.2).

Season calendar

20 games · strikeouts vs his average
Mar
Apr
May
Jun
Jul
Sep
BelowAbove their averageBest: 05/06 · 5.0 IP, 10 K, 2 ER vs BOS

Splits

Arrows = last 10 vs season
ERAWHIPK/9IP/g
Season20 G4.481.3910.54.4
Last 1010 G3.221.1911.14.5
Home10 G4.471.1211.74.8
Away10 G4.501.739.04.0
CHW4 G4.871.338.45.1

Vs opponent uses every 2025 and 2026 outing in our logs.

Where they rank

vs MLB starters, 2026, 3+ outings of 4+ IP avg
Strikeouts / 9
10.5
89
Walks / 9
4.3
12
ERA
4.48
41
WHIP
1.39
31
Innings / outing
4.4
14

Percentile, 0–100. Green = top fifth of the pool, red = bottom third.

Most similar

Same stats, closest profile
NYMJonah Tong3.82 ERA · 10.0 K/9COLChase Dollander3.89 ERA · 9.6 K/9ATLSpencer Strider5.31 ERA · 10.6 K/9

Game log

25 of 51
09/27 · reliefvs PIT
2.0 IP · 1 H1K
07/20@ CHC
4.0 IP · 4 H · 3 ER · 2 BB4K
07/10vs PHI
6.0 IP · 2 H · 2 ER · 3 BB6K
07/04@ TEX
5.2 IP · 3 H5K
06/28vs HOU
5.0 IP · 2 H · 3 BB9K
06/12@ CLE
3.0 IP · 3 H · 2 ER · 1 BB1K
06/07vs SEA
5.0 IP · 6 H · 3 ER · 1 BB7K
06/02@ TB
5.0 IP · 5 H · 2 BB6K
05/28vs LAA
5.2 IP · 6 H · 3 ER · 1 BB9K
05/22@ BAL
3.1 IP · 8 H · 3 ER7K
05/17vs TOR
6.0 IP · 5 H · 4 ER4K
05/12@ NYM
3.2 IP · 6 H · 3 ER · 3 BB2K
05/06vs BOS
5.0 IP · 3 H · 2 ER · 1 BB10K
05/01vs TEX
3.2 IP · 5 H · 4 ER · 3 BB4K
04/25@ CIN
2.0 IP · 5 H · 6 ER · 2 BB4K
04/20@ BOS
3.1 IP · 3 H · 6 BB3K
04/15vs KC
6.0 IP · 2 H · 1 ER · 3 BB7K
04/09@ MIN
5.2 IP · 5 H · 1 ER · 3 BB6K
04/04vs STL
4.0 IP · 3 H · 5 ER · 4 BB6K
03/28@ SD
4.1 IP · 4 H · 2 ER · 4 BB2K
09/24@ CLE
4.1 IP · 5 H · 3 ER6K
09/17vs CLE
5.0 IP · 3 H · 1 ER · 4 BB4K
09/10@ NYY
5.0 IP · 2 H · 1 BB7K
09/05vs CHW
4.1 IP · 6 H · 4 ER · 2 BB2K
08/30@ KC
5.2 IP · 4 H · 1 ER · 2 BB4K
DateOppKIPHERBBPIT
09/27 · reliefPIT12.010019
07/20@CHC44.043282
07/10PHI66.022386
07/04@TEX55.230088
06/28HOU95.020394
06/12@CLE13.032163
06/07SEA75.063187
06/02@TB65.050294
05/28LAA95.263191
05/22@BAL73.183078
05/17TOR46.054090
05/12@NYM23.263397
05/06BOS105.032196
05/01TEX43.254391
04/25@CIN42.056268
04/20@BOS33.130673
04/15KC76.021397
04/09@MIN65.251389
04/04STL64.035486
03/28@SD24.142489
09/24@CLE64.153083
09/17CLE45.031495
09/10@NYY75.020199
09/05CHW24.164283
08/30@KC45.2412101

GS counts outings of 4+ IP or 50+ pitches — our logs don't flag starts.