MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of AJ Blubaugh
AJ Blubaugh
HOU · P
Change to
Portrait of Jack Perkins
Jack Perkins
ATH · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 1–1, 2 even. Take whoever fills a bigger need.

Head-to-head
K
ERA
▶
◀
WHIP
W
SV n/a

AJ Blubaugh wins 1 (WHIP); Jack Perkins wins 1 (ERA); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
AJ Blubaugh
95.8
Jack Perkins
95.7
Swinging-Strike %lg 11.0% · higher = better
AJ Blubaugh
13.7%
Jack Perkins
12.7%
Strikeout %lg 22.0% · higher = better
AJ Blubaugh
23.4%
Jack Perkins
25.2%
Chase %lg 28.5% · higher = better
AJ Blubaugh
28.8%
Jack Perkins
33.7%
Hard-Hit % Allowedlg 40.0% · lower = better
AJ Blubaugh
37.0%
Jack Perkins
36.9%
Barrel % Allowedlg 8.0% · lower = better
AJ Blubaugh
10.3%
Jack Perkins
8.5%
xwOBA Allowedlg .315 · lower = better
AJ Blubaugh
.317
Jack Perkins
.309
stabilized — trust it · small sample yet · dashed = league avg · right = better
05

The tape

Rest-of-season projection · bold = leads
rest-of-season projection current season projection range
Rate · earned-run quality
ERAlower is better
AJ Blubaugh
3.296.08
lg xERA 4.10
now 4.42
4.06
Jack Perkins
3.296.08
lg xERA 4.10
now 5.46
3.91
WHIPlower is better
AJ Blubaugh
1.141.40
now 1.31
1.32
Jack Perkins
1.141.40
now 1.21
1.33

Volume · rest of season
Strikeoutshigher is better
AJ Blubaugh
4046.20
now 28
0
Jack Perkins
4046.20
now 33
0
Winshigher is better
AJ Blubaugh
.0002.80
now 2
0–0
Jack Perkins
.0002.80
now 2
0–0

SV — not applicable. Both pitch out of the rotation.

If you already own them — trade angle
Sell HighAJ Blubaugh — sell high. His value is peaking; good time to trade him.conf 0.89
Buy LowJack Perkins — buy low. The dip is a window to acquire.conf 0.90
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