MLB Daily DeltaWeek 19 · July 30, 2026
Portrait of Chris Sale
Chris Sale
ATL · P
Change to
Portrait of Martín Pérez
Martín Pérez
ATL · P
Change to
Who's more valuable, rest of season

Chris Sale.

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

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

Chris Sale wins 4 categories (K, ERA, WHIP, W); Martín Pérez wins 0 (none); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Chris Sale
96.1
Martín Pérez
89.9
Swinging-Strike %lg 11.0% · higher = better
Chris Sale
15.4%
Martín Pérez
9.1%
Strikeout %lg 22.0% · higher = better
Chris Sale
29.7%
Martín Pérez
18.5%
Chase %lg 28.5% · higher = better
Chris Sale
36.0%
Martín Pérez
25.6%
Hard-Hit % Allowedlg 40.0% · lower = better
Chris Sale
33.5%
Martín Pérez
38.1%
Barrel % Allowedlg 8.0% · lower = better
Chris Sale
5.7%
Martín Pérez
6.4%
xwOBA Allowedlg .315 · lower = better
Chris Sale
.277
Martín Pérez
.332
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
Chris Sale
25.48
lg xERA 4.10
now 2.01
3.18
Martín Pérez
25.48
lg xERA 4.10
now 2.79
4.49
WHIPlower is better
Chris Sale
.9001.56
now 0.94
1.13
Martín Pérez
.9001.56
now 1.06
1.38

Volume · rest of season
Strikeoutshigher is better
Chris Sale
4098.40
now 80
59
Martín Pérez
4098.40
now 42
34
Winshigher is better
Chris Sale
.00010.40
now 8
48
Martín Pérez
.00010.40
now 3
23

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

If you already own them — trade angle
BuyChris Sale — buy.conf 0.88
Sell HighMartín Pérez — sell high. His value is peaking; good time to trade him.conf 0.95
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