MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Casey Mize
Casey Mize
SD · P
Change to
Logan Webb
SF · 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

Casey Mize wins 1 (ERA); Logan Webb 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
Casey Mize
93.3
Logan Webb
92.3
Swinging-Strike %lg 11.0% · higher = better
Casey Mize
11.0%
Logan Webb
10.2%
Strikeout %lg 22.0% · higher = better
Casey Mize
20.0%
Logan Webb
20.1%
Chase %lg 28.5% · higher = better
Casey Mize
29.4%
Logan Webb
32.9%
Hard-Hit % Allowedlg 40.0% · lower = better
Casey Mize
39.4%
Logan Webb
38.9%
Barrel % Allowedlg 8.0% · lower = better
Casey Mize
8.3%
Logan Webb
5.8%
xwOBA Allowedlg .315 · lower = better
Casey Mize
.303
Logan Webb
.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
Casey Mize
25.84
lg xERA 4.10
now 2.27
3.86
Logan Webb
25.84
lg xERA 4.10
now 4.82
4.09
WHIPlower is better
Casey Mize
.9001.56
now 0.97
1.29
Logan Webb
.9001.56
now 1.39
1.27

Volume · rest of season
Strikeoutshigher is better
Casey Mize
4068.60
now 49
0
Logan Webb
4068.60
now 47
0
Winshigher is better
Casey Mize
.0002.80
now 2
0–0
Logan Webb
.0002.80
now 2
0–0

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

If you already own them — trade angle
Hold · leans buyCasey Mize — hold.conf 0.60
Hold · steadyLogan Webb — hold.conf 0.60
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