MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Davis Martin
Davis Martin
CWS · P
Change to
Portrait of George Kirby
George Kirby
SEA · 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

Davis Martin wins 1 (WHIP); George Kirby 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
Davis Martin
93.9
George Kirby
96.7
Swinging-Strike %lg 11.0% · higher = better
Davis Martin
11.3%
George Kirby
11.7%
Strikeout %lg 22.0% · higher = better
Davis Martin
19.8%
George Kirby
20.0%
Chase %lg 28.5% · higher = better
Davis Martin
31.8%
George Kirby
34.3%
Hard-Hit % Allowedlg 40.0% · lower = better
Davis Martin
44.7%
George Kirby
40.1%
Barrel % Allowedlg 8.0% · lower = better
Davis Martin
6.5%
George Kirby
6.6%
xwOBA Allowedlg .315 · lower = better
Davis Martin
.330
George Kirby
.315
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
Davis Martin
25.44
lg xERA 4.10
now 2.00
4.46
George Kirby
25.44
lg xERA 4.10
now 3.77
4.17
WHIPlower is better
Davis Martin
.9001.55
now 0.99
1.36
George Kirby
.9001.55
now 1.22
1.39

Volume · rest of season
Strikeoutshigher is better
Davis Martin
4099.40
now 71
0
George Kirby
4099.40
now 59
0
Winshigher is better
Davis Martin
.00011.20
now 8
0–0
George Kirby
.00011.20
now 5
0–0

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

If you already own them — trade angle
SellDavis Martin — sell.conf 0.72
Hold · steadyGeorge Kirby — hold.conf 0.60
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