MLB Daily DeltaWeek 25 · September 11, 2026
Portrait of Casey Mize
Casey Mize
SD · P
Change to
Portrait of Nick Martinez
Nick Martinez
TB · 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

Casey Mize wins 2 (K, ERA); Nick Martinez wins 2 (WHIP, W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Casey Mize
93.4
Nick Martinez
92.7
Swinging-Strike %lg 11.0% · higher = better
Casey Mize
11.7%
Nick Martinez
8.9%
Strikeout %lg 22.0% · higher = better
Casey Mize
22.0%
Nick Martinez
14.8%
Chase %lg 28.5% · higher = better
Casey Mize
29.3%
Nick Martinez
32.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Casey Mize
39.7%
Nick Martinez
33.2%
Barrel % Allowedlg 8.0% · lower = better
Casey Mize
8.3%
Nick Martinez
6.9%
xwOBA Allowedlg .315 · lower = better
Casey Mize
.289
Nick Martinez
.316
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
25.19
lg xERA 4.10
now 2.27
3.48
Nick Martinez
25.19
lg xERA 4.10
now 1.62
4.17
WHIPlower is better
Casey Mize
.9001.31
now 0.97
1.21
Nick Martinez
.9001.31
now 1.11
1.20

Volume · rest of season
Strikeoutshigher is better
Casey Mize
4065.40
now 49
11
Nick Martinez
4065.40
now 41
8
Winshigher is better
Casey Mize
.0007
now 2
01
Nick Martinez
.0007
now 5
11

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

If you already own them — trade angle
BuyCasey Mize — buy.conf 0.79
Sell HighNick Martinez — sell high. His value is peaking; good time to trade him.conf 0.95
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