MLB Daily DeltaWeek 25 · September 10, 2026
Cionel Pérez
NYM · P
Change to
Portrait of Colin Holderman
Colin Holderman
CLE · P
Change to
Who's more valuable, rest of season

Cionel Pérez.

He projects to help you in more roto categories the rest of the way — ERA and WHIP. Colin Holderman’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

Cionel Pérez wins 2 categories (ERA, WHIP); Colin Holderman wins 1 (K); 1 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Cionel Pérez
96.9
Colin Holderman
97.0
Swinging-Strike %lg 11.0% · higher = better
Cionel Pérez
11.6%
Colin Holderman
12.0%
Strikeout %lg 22.0% · higher = better
Cionel Pérez
22.7%
Colin Holderman
22.5%
Chase %lg 28.5% · higher = better
Cionel Pérez
30.0%
Colin Holderman
29.8%
Hard-Hit % Allowedlg 40.0% · lower = better
Cionel Pérez
50.0%
Colin Holderman
44.4%
Barrel % Allowedlg 8.0% · lower = better
Cionel Pérez
12.9%
Colin Holderman
7.7%
xwOBA Allowedlg .315 · lower = better
Cionel Pérez
.346
Colin Holderman
.303
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
Cionel Pérez
27.29
lg xERA 4.10
now 5.82
3.70
Colin Holderman
27.29
lg xERA 4.10
now 2.14
3.79
WHIPlower is better
Cionel Pérez
.9001.90
now 1.59
1.24
Colin Holderman
.9001.90
now 0.81
1.30

Volume · rest of season
Strikeoutshigher is better
Cionel Pérez
4031.40
now 10
2
Colin Holderman
4031.40
now 23
5
Winshigher is better
Cionel Pérez
.0004.20
now 2
01
Colin Holderman
.0004.20
now 3
01

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

If you already own them — trade angle
Hold · wait & seeCionel Pérez — hold.conf 0.50
Sell HighColin Holderman — sell high. His value is peaking; good time to trade him.conf 0.95
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