Home / Players / Jack Flaherty
MLB · Player analytics

Jack Flaherty

Starting pitcher, DET. Every number below comes from our own game archive, pitch-tracking table and prop-line archive, with the window and sample size printed beside it.

Data as of 2026-08-11 · team report
2026 starts
18
78.3 innings
ERA
5.06
Strikeouts
93
10.7 per 9
Walks
39

Advanced profile

Percentile among 453 pitchers with 8+ tracked starts, 2026 season through 2026-07-02 (our pitch-tracking window) · higher is better on every bar
Whiff rate
23.3%
53
CSW rate
26.9%
43
xwOBA against
0.408
46
Hard-hit against
26.3%
47

Strikeouts vs the prop line

Last 12 starts · bar = strikeouts, dash = that morning's opening line (median of quoting books, earliest capture per book) · teal over, red under, grey unlined
0246810vs TEX05-01vs BOS05-06at NYM05-12vs TOR05-17at BAL05-22vs LAA05-28at TB06-02vs SEA06-07at CLE06-12at TEX07-04vs PHI07-10at CHC07-20

Conditioned record vs the line

Overs–unders against the opening strikeout line, split by the situations that move strikeout props · 2026 lined starts only
SplitO–UAvg KAvg linen
All lined starts8–95.295.4417
vs top-10 strikeout-prone teams4–16.65.75
vs bottom-10 strikeout-prone teams3–24.84.95
Home6–26.625.388
Away2–74.115.59
Last 52–34.65.35

Strikeout-prone = the opponent's strikeouts per game rank across the 2026 season, our archive. Counts of what happened, not predictions.

Start log

Last 12 starts · pitch-tracking columns blank where the game postdates our tracking window
DateOppIPKK lineBBERWhiffxwOBA
2026-07-20at CHC4.045.523
2026-07-10vs PHI6.065.532
2026-07-04at TEX5.255.500
2026-06-12at CLE3.014.51213%0.335
2026-06-07vs SEA5.075.51337%0.505
2026-06-02at TB5.065.52019%0.295
2026-05-28vs LAA5.296.51340%0.369
2026-05-22at BAL3.175.50321%0.548
2026-05-17vs TOR6.044.50423%0.384
2026-05-12at NYM3.225.53314%0.486
2026-05-06vs BOS5.0105.51225%0.376
2026-05-01vs TEX3.245.53417%0.362

Ballpark

K per start, home
6.6
8 starts
K per start, away
4.0
10 starts
Park K factor
99.00
2025 season, home park

Where these numbers come from

Information, not betting advice. This page reports what happened, with windows and sample sizes attached. Small samples are labeled with their n so you can weigh them accordingly. No picks, no recommendations.