MLB Daily DeltaWeek 25 · September 11, 2026
Cionel Pérez
NYM · P
Change to
Franco Aleman
CLE · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 00, 4 even. Take whoever fills a bigger need.

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

Cionel Pérez wins 0 (none); Franco Aleman wins 0 (none); 4 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
Franco Aleman
96.1
Swinging-Strike %lg 11.0% · higher = better
Cionel Pérez
11.6%
Franco Aleman
12.4%
Strikeout %lg 22.0% · higher = better
Cionel Pérez
22.7%
Franco Aleman
28.7%
Chase %lg 28.5% · higher = better
Cionel Pérez
30.0%
Franco Aleman
25.7%
Hard-Hit % Allowedlg 40.0% · lower = better
Cionel Pérez
50.0%
Franco Aleman
41.8%
Barrel % Allowedlg 8.0% · lower = better
Cionel Pérez
12.9%
Franco Aleman
5.5%
xwOBA Allowedlg .315 · lower = better
Cionel Pérez
.346
Franco Aleman
.292
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
27.25
lg xERA 4.10
now 5.82
3.70
Franco Aleman
27.25
lg xERA 4.10
now 2.25
3.70
WHIPlower is better
Cionel Pérez
.9001.83
now 1.59
1.24
Franco Aleman
.9001.83
now 1.00
1.24

Volume · rest of season
Strikeoutshigher is better
Cionel Pérez
4015.60
now 10
2
Franco Aleman
4015.60
now 2
2
Winshigher is better
Cionel Pérez
.0002.80
now 2
01
Franco Aleman
.0002.80
now 0
00

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

If you already own them — trade angle
Hold · wait & seeCionel Pérez — hold.conf 0.50
Hold · wait & seeFranco Aleman — hold.conf 0.50
Tweet