Detroit Tigers#43 · SP
Jack Flaherty
Age 30
Contract Value $17,500,000/yr
Size 6' 4" · 225
Throws RHP
Bats Right
From Burbank, CA
3–8
W-L
4.48
ERA
1.39
WHIP
103
K
88.1
IP
19
GS
46P-ScoreBELOW AVG
Strong form with consistency still trailing the rest of the profile. He ranks 143rd among 226 qualified starters.
How P-Score worksStats updated Oct 22, 5:03 PM ETLast game Jul 20 at CHC
Season overview
How good is he?
StatPlayerMLB AvgPercentile
Run Prevention4850BELOW AVG
Skill5450AVERAGE
Workload3750WEAK
Consistency2850POOR
Form6050ABOVE AVG
Contact Management4050BELOW AVG
Recent form
Last 5 startsGame log
Pitch arsenal (2026)
Usage %Velocity
- Four-seam FB49.2%92.7 mph
- Slider24.2%85.0 mph
- Knuckle Curve19.6%78.1 mph
- Sinker4.5%90.9 mph
- Changeup2.6%85.4 mph
Hot / cold zones (vs RHB)
.222.313.100.227.324.250.269.222.293
- Better than MLB avg
- Similar to MLB avg
- Worse than MLB avg
Monthly ERA (2026)
Minimum 1 GSSplits
Home / away
Home (9 GS)
4.66
WHIP 1.14
Away (10 GS)
4.50
WHIP 1.73
0.16 ERA better on the road
vs handedness
vs LHH
.731
vs RHH
.771
.040 OPS better vs LHH
By monthERA · IP · K
July2.8715.215
June2.5018.023
May6.2627.136
April5.5721.026
March4.154.12
Rest daysERA · WHIP · K/9
5 days (9 GS)4.931.5411.3
6+ days (9 GS)4.331.2610.7
Sample sizes below four starts are not shown
Career
Frequently asked
What is Jack Flaherty's ERA in 2026?+
4.48 across 19 starts and 88.1 innings, with a 1.39 WHIP and a 4.10 FIP. That ERA ranks 137th among qualified starters.
When is his next start?+
No probable start has been announced.
What pitches does he throw?+
He throws four-seam fb (49.2% at 92.7 mph mph), slider (24.2% at 85.0 mph mph), knuckle curve (19.6% at 78.1 mph mph), sinker (4.5% at 90.9 mph mph), changeup (2.6% at 85.4 mph mph).
What is his P-Score?+
46 out of 100, which we label below avg — 143rd among 226 qualified starters.
How has he pitched in his last 5 starts?+
A 2.66 ERA, 9.5 K/9, 3.4 BB/9.