MLB Daily DeltaWeek 25 · September 10, 2026
Cionel Pérez
NYM · P
Change to
PJ Poulin
WSH · 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. PJ Poulin’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); PJ Poulin 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
PJ Poulin
90.1
Swinging-Strike %lg 11.0% · higher = better
Cionel Pérez
11.6%
PJ Poulin
6.8%
Strikeout %lg 22.0% · higher = better
Cionel Pérez
22.7%
PJ Poulin
16.3%
Chase %lg 28.5% · higher = better
Cionel Pérez
30.0%
PJ Poulin
23.7%
Hard-Hit % Allowedlg 40.0% · lower = better
Cionel Pérez
50.0%
PJ Poulin
44.3%
Barrel % Allowedlg 8.0% · lower = better
Cionel Pérez
12.9%
PJ Poulin
9.4%
xwOBA Allowedlg .315 · lower = better
Cionel Pérez
.346
PJ Poulin
.353
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
2.156.87
lg xERA 4.10
now 5.82
3.70
PJ Poulin
2.156.87
lg xERA 4.10
now 3.20
3.78
WHIPlower is better
Cionel Pérez
1.101.73
now 1.59
1.24
PJ Poulin
1.101.73
now 1.46
1.26

Volume · rest of season
Strikeoutshigher is better
Cionel Pérez
4024.40
now 10
2
PJ Poulin
4024.40
now 18
4
Winshigher is better
Cionel Pérez
.0004.20
now 2
01
PJ Poulin
.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 HighPJ Poulin — sell high. His value is peaking; good time to trade him.conf 0.95
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