MLB Daily DeltaWeek 25 · September 11, 2026
Portrait of George Kirby
George Kirby
SEA · P
Change to
Portrait of Trevor McDonald
Trevor McDonald
SF · P
Change to
Who's more valuable, rest of season

George Kirby.

He projects to help you in more roto categories the rest of the way — ERA.

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

George Kirby wins 1 categories (ERA); Trevor McDonald wins 0 (none); 3 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
Trevor McDonald
94.0
Swinging-Strike %lg 11.0% · higher = better
George Kirby
11.4%
Trevor McDonald
9.5%
Strikeout %lg 22.0% · higher = better
George Kirby
19.9%
Trevor McDonald
18.4%
Chase %lg 28.5% · higher = better
George Kirby
34.8%
Trevor McDonald
29.3%
Hard-Hit % Allowedlg 40.0% · lower = better
George Kirby
40.3%
Trevor McDonald
37.8%
Barrel % Allowedlg 8.0% · lower = better
George Kirby
6.9%
Trevor McDonald
4.1%
xwOBA Allowedlg .315 · lower = better
George Kirby
.310
Trevor McDonald
.311
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
3.544.57
lg xERA 4.10
now 3.77
4.04
Trevor McDonald
3.544.57
lg xERA 4.10
now 4.34
4.07
WHIPlower is better
George Kirby
.9601.46
now 1.22
1.35
Trevor McDonald
.9601.46
now 1.07
1.35

Volume · rest of season
Strikeoutshigher is better
George Kirby
4078.20
now 59
11
Trevor McDonald
4078.20
now 27
11
Winshigher is better
George Kirby
.0007
now 5
11
Trevor McDonald
.0007
now 2
01

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

If you already own them — trade angle
Hold · steadyGeorge Kirby — hold.conf 0.60
Hold · steadyTrevor McDonald — hold.conf 0.60
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