MLB Daily DeltaWeek 25 · September 11, 2026
Ethan Pecko
HOU · P
Change to
Portrait of Martín Pérez
Martín Pérez
ATL · P
Change to
Who's more valuable, rest of season

Ethan Pecko.

He projects to help you in more roto categories the rest of the way — strikeouts, ERA, and WHIP. Martín Pérez’s box score looks better right now, but it’s built on luck that won’t hold.

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

Ethan Pecko wins 3 categories (K, ERA, WHIP); Martín Pérez wins 1 (W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Ethan Pecko
93.5
Martín Pérez
89.9
Swinging-Strike %lg 11.0% · higher = better
Ethan Pecko
10.2%
Martín Pérez
9.4%
Strikeout %lg 22.0% · higher = better
Ethan Pecko
14.3%
Martín Pérez
18.0%
Chase %lg 28.5% · higher = better
Ethan Pecko
28.2%
Martín Pérez
26.9%
Hard-Hit % Allowedlg 40.0% · lower = better
Ethan Pecko
43.6%
Martín Pérez
38.1%
Barrel % Allowedlg 8.0% · lower = better
Ethan Pecko
10.9%
Martín Pérez
5.4%
xwOBA Allowedlg .315 · lower = better
Ethan Pecko
.383
Martín Pérez
.334
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
Ethan Pecko
25.76
lg xERA 4.10
now 4.91
4.10
Martín Pérez
25.76
lg xERA 4.10
now 2.79
4.53
WHIPlower is better
Ethan Pecko
.9001.87
now 1.64
1.30
Martín Pérez
.9001.87
now 1.06
1.39

Volume · rest of season
Strikeoutshigher is better
Ethan Pecko
4057.20
now 4
10
Martín Pérez
4057.20
now 42
9
Winshigher is better
Ethan Pecko
.0004.20
now 0
00
Martín Pérez
.0004.20
now 3
01

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

If you already own them — trade angle
Sell HighEthan Pecko — 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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