MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Erick Fedde
Erick Fedde
CWS · P
Change to
Portrait of Martín Pérez
Martín Pérez
ATL · 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

Erick Fedde wins 1 (WHIP); Martín Pérez wins 1 (ERA); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Erick Fedde
94.4
Martín Pérez
89.9
Swinging-Strike %lg 11.0% · higher = better
Erick Fedde
7.7%
Martín Pérez
9.1%
Strikeout %lg 22.0% · higher = better
Erick Fedde
16.3%
Martín Pérez
17.1%
Chase %lg 28.5% · higher = better
Erick Fedde
24.2%
Martín Pérez
27.4%
Hard-Hit % Allowedlg 40.0% · lower = better
Erick Fedde
40.5%
Martín Pérez
35.0%
Barrel % Allowedlg 8.0% · lower = better
Erick Fedde
8.2%
Martín Pérez
4.7%
xwOBA Allowedlg .315 · lower = better
Erick Fedde
.334
Martín Pérez
.325
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
Erick Fedde
26.44
lg xERA 4.10
now 5.40
4.55
Martín Pérez
26.44
lg xERA 4.10
now 2.79
4.36
WHIPlower is better
Erick Fedde
.9001.65
now 1.48
1.37
Martín Pérez
.9001.65
now 1.06
1.39

Volume · rest of season
Strikeoutshigher is better
Erick Fedde
4058.80
now 34
0
Martín Pérez
4058.80
now 42
0
Winshigher is better
Erick Fedde
.0004.20
now 0
0–0
Martín Pérez
.0004.20
now 3
0–0

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

If you already own them — trade angle
Sell HighErick Fedde — sell high. His value is peaking; good time to trade him.conf 0.95
Sell HighMartín Pérez — sell high. His value is peaking; good time to trade him.conf 0.95
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