MLB Daily DeltaWeek 10 · June 3, 2026
Engraved portrait of Jack Flaherty
week 10
this weekSELL
last weekSELL

Jack Flaherty

data as of June 3, 2026·week 10

Flaherty is a sell — his skill is below league and not unlucky.

His expected ERA is 4.68 — more than half a run above the league average of 4.10 — and he has faced enough batters for that number to be reliable. His actual ERA tracks near it, so there is no luck story holding the line down. His BABIP-against is near league average and still noisy, but the xERA already accounts for that. The skill metrics confirm the issue: he allows a 47.3% hard-hit rate and a 9.3% barrel rate, both above league average and stable. His walk rate is 12.0%, well above league average, while his strikeout rate of 25.7% is above average but not enough to offset the walks and hard contact. The xERA has stepped up across the sample, not down. Sell.

Sell
med0.72

Drivers

  • xeraSIGNALstable xERA 4.68 +0.58 vs league with no luck excuse
metric · nowrolling trajectoryvs. leaguestabilized?
Hard-Hit % Allowed47.3%
47.3%
lg avg 40.0% +7.3%trustworthy at this sample
SIGNAL150 / 50 BBE
Barrel % Allowed9.3%
9.3%
lg avg 8.0% +1.3%trustworthy at this sample
SIGNAL150 / 60 BBE
xwOBA Allowed.339
.339
lg avg .315 +.024trustworthy at this sample
SIGNAL249 / 200 TBF
xERA4.68
4.68
lg avg 4.10 +0.58trustworthy at this sample
SIGNAL249 / 200 TBF
ERA5.81
5.81
lg avg 4.10 +1.71too early to trust
NOISE52.7 / 200 IP
Strikeout %25.7%
25.7%
lg avg 22.0% +3.7%trustworthy at this sample
SIGNAL249 / 70 TBF
Walk %12.0%
12.0%
lg avg 8.0% +4.0%trustworthy at this sample
SIGNAL249 / 170 TBF
BABIP Against.336
.336
lg avg .295 +.041too early to trust
NOISE150 / 800 BIP