MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Casey Mize
Casey Mize
SD · P
Change to
Portrait of Justin Wrobleski
Justin Wrobleski
LAD · 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); Justin Wrobleski 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
Justin Wrobleski
94.6
Swinging-Strike %lg 11.0% · higher = better
Casey Mize
11.0%
Justin Wrobleski
10.4%
Strikeout %lg 22.0% · higher = better
Casey Mize
20.0%
Justin Wrobleski
20.1%
Chase %lg 28.5% · higher = better
Casey Mize
29.4%
Justin Wrobleski
32.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Casey Mize
39.4%
Justin Wrobleski
43.3%
Barrel % Allowedlg 8.0% · lower = better
Casey Mize
8.3%
Justin Wrobleski
9.5%
xwOBA Allowedlg .315 · lower = better
Casey Mize
.303
Justin Wrobleski
.328
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
25.28
lg xERA 4.10
now 2.27
3.86
Justin Wrobleski
25.28
lg xERA 4.10
now 2.87
4.42
WHIPlower is better
Casey Mize
.9001.42
now 0.97
1.29
Justin Wrobleski
.9001.42
now 1.01
1.20

Volume · rest of season
Strikeoutshigher is better
Casey Mize
4068.60
now 49
0
Justin Wrobleski
4068.60
now 40
0
Winshigher is better
Casey Mize
.0009.80
now 2
0–0
Justin Wrobleski
.0009.80
now 7
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
Sell HighJustin Wrobleski — sell high. His value is peaking; good time to trade him.conf 0.95
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