MLB Daily DeltaWeek 19 · July 31, 2026
Cionel Pérez
NYM · P
Change to
Portrait of José A. Ferrer
José A. Ferrer
SEA · P
Change to
Who's more valuable, rest of season

José A. Ferrer.

He projects to help you in more roto categories the rest of the way — strikeouts, ERA, and saves.

Head-to-head
K
ERA
WHIP
W
SV

José A. Ferrer wins 3 categories (K, ERA, SV); Cionel Pérez wins 2 (WHIP, W).

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Cionel Pérez
96.9
José A. Ferrer
95.7
Swinging-Strike %lg 11.0% · higher = better
Cionel Pérez
11.6%
José A. Ferrer
10.3%
Strikeout %lg 22.0% · higher = better
Cionel Pérez
22.7%
José A. Ferrer
18.8%
Chase %lg 28.5% · higher = better
Cionel Pérez
30.0%
José A. Ferrer
28.7%
Hard-Hit % Allowedlg 40.0% · lower = better
Cionel Pérez
50.0%
José A. Ferrer
35.3%
Barrel % Allowedlg 8.0% · lower = better
Cionel Pérez
12.9%
José A. Ferrer
5.0%
xwOBA Allowedlg .315 · lower = better
Cionel Pérez
.346
José A. Ferrer
.281
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
27.47
lg xERA 4.10
now 5.82
3.70
José A. Ferrer
27.47
lg xERA 4.10
now 1.69
3.67
WHIPlower is better
Cionel Pérez
1.041.75
now 1.59
1.24
José A. Ferrer
1.041.75
now 1.20
1.25

Volume · rest of season
Strikeoutshigher is better
Cionel Pérez
4028.60
now 10
9
José A. Ferrer
4028.60
now 23
16
Winshigher is better
Cionel Pérez
.0004.20
now 2
13
José A. Ferrer
.0004.20
now 0
00
Saveshigher is better
Cionel Pérez
.0004.40
now 0
0
José A. Ferrer
.0004.40
now 3
13
If you already own them — trade angle
Hold · wait & seeCionel Pérez — hold.conf 0.50
Hold · wait & seeJosé A. Ferrer — hold.conf 0.50
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