MLB Daily DeltaWeek 18 · July 24, 2026
Cionel Pérez
NYM · P
Change to
Portrait of Justin Sterner
Justin Sterner
ATH · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 11, 2 even. Take whoever fills a bigger need.

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

Cionel Pérez wins 1 (W); Justin Sterner wins 1 (K); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Cionel Pérez
96.8
Justin Sterner
93.5
Swinging-Strike %lg 11.0% · higher = better
Cionel Pérez
11.0%
Justin Sterner
15.6%
Strikeout %lg 22.0% · higher = better
Cionel Pérez
20.8%
Justin Sterner
21.7%
Chase %lg 28.5% · higher = better
Cionel Pérez
31.2%
Justin Sterner
33.9%
Hard-Hit % Allowedlg 40.0% · lower = better
Cionel Pérez
51.3%
Justin Sterner
45.0%
Barrel % Allowedlg 8.0% · lower = better
Cionel Pérez
12.8%
Justin Sterner
9.2%
xwOBA Allowedlg .315 · lower = better
Cionel Pérez
.358
Justin Sterner
.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
2.636.73
lg xERA 4.10
now 5.82
3.70
Justin Sterner
2.636.73
lg xERA 4.10
now 3.54
3.69
WHIPlower is better
Cionel Pérez
.9201.78
now 1.59
1.24
Justin Sterner
.9201.78
now 1.11
1.24

Volume · rest of season
Strikeoutshigher is better
Cionel Pérez
4032.40
now 10
10
Justin Sterner
4032.40
now 26
20
Winshigher is better
Cionel Pérez
.2003.80
now 2
13
Justin Sterner
.2003.80
now 2
12

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 & seeJustin Sterner — hold.conf 0.50
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