MLB Daily DeltaWeek 28 · October 3, 2026
Portrait of George Kirby
George Kirby
SEA · P
Change to
Portrait of Kumar Rocker
Kumar Rocker
TEX · 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

George Kirby wins 1 (ERA); Kumar Rocker wins 1 (WHIP); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
George Kirby
96.7
Kumar Rocker
94.5
Swinging-Strike %lg 11.0% · higher = better
George Kirby
11.7%
Kumar Rocker
12.5%
Strikeout %lg 22.0% · higher = better
George Kirby
20.0%
Kumar Rocker
21.4%
Chase %lg 28.5% · higher = better
George Kirby
34.3%
Kumar Rocker
31.4%
Hard-Hit % Allowedlg 40.0% · lower = better
George Kirby
40.1%
Kumar Rocker
40.0%
Barrel % Allowedlg 8.0% · lower = better
George Kirby
6.6%
Kumar Rocker
7.5%
xwOBA Allowedlg .315 · lower = better
George Kirby
.315
Kumar Rocker
.324
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
George Kirby
3.224.67
lg xERA 4.10
now 3.77
4.17
Kumar Rocker
3.224.67
lg xERA 4.10
now 3.54
4.35
WHIPlower is better
George Kirby
1.151.46
now 1.22
1.39
Kumar Rocker
1.151.46
now 1.32
1.38

Volume · rest of season
Strikeoutshigher is better
George Kirby
4082.60
now 59
0
Kumar Rocker
4082.60
now 44
0
Winshigher is better
George Kirby
.0007
now 5
0–0
Kumar Rocker
.0007
now 2
0–0

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

If you already own them — trade angle
Hold · steadyGeorge Kirby — hold.conf 0.60
SellKumar Rocker — sell.conf 0.66
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