MLB Daily DeltaWeek 14 · June 28, 2026
Portrait of George Kirby
George Kirby
SEA · P
Change to
Portrait of Keider Montero
Keider Montero
DET · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 22. Take whoever fills a bigger need.

Head-to-head
K
ERA
WHIP
W
SV n/a

George Kirby wins 2 (K, W); Keider Montero wins 2 (ERA, WHIP); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
George Kirby
96.7
Keider Montero
94.2
Swinging-Strike %lg 11.0% · higher = better
George Kirby
10.8%
Keider Montero
8.3%
Strikeout %lg 22.0% · higher = better
George Kirby
20.9%
Keider Montero
16.1%
Chase %lg 28.5% · higher = better
George Kirby
34.2%
Keider Montero
26.4%
Hard-Hit % Allowedlg 40.0% · lower = better
George Kirby
42.0%
Keider Montero
39.0%
Barrel % Allowedlg 8.0% · lower = better
George Kirby
6.5%
Keider Montero
7.7%
xwOBA Allowedlg .315 · lower = better
George Kirby
.303
Keider Montero
.296
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
3.343.99
lg xERA 4.10
now 3.77
3.75
Keider Montero
3.343.99
lg xERA 4.10
now 3.69
3.56
WHIPlower is better
George Kirby
.9001.45
now 1.22
1.32
Keider Montero
.9001.45
now 1.00
1.22

Volume · rest of season
Strikeoutshigher is better
George Kirby
4079.40
now 59
69
Keider Montero
4079.40
now 43
57
Winshigher is better
George Kirby
.00010.40
now 5
48
Keider Montero
.00010.40
now 2
24

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

If you already own them — trade angle
BuyGeorge Kirby — buy.conf 0.70
BuyKeider Montero — buy.conf 0.76
Tweet