MLB Daily DeltaWeek 16 · July 10, 2026
Portrait of Kyle Leahy
Kyle Leahy
STL · P
Change to
Portrait of Martín Pérez
Martín Pérez
ATL · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 22. Take whoever fills a bigger need.

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

Kyle Leahy wins 2 (K, W); Martín Pérez wins 2 (ERA, WHIP); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Kyle Leahy
94.1
Martín Pérez
90.0
Swinging-Strike %lg 11.0% · higher = better
Kyle Leahy
10.0%
Martín Pérez
9.3%
Strikeout %lg 22.0% · higher = better
Kyle Leahy
19.3%
Martín Pérez
18.6%
Chase %lg 28.5% · higher = better
Kyle Leahy
26.1%
Martín Pérez
26.2%
Hard-Hit % Allowedlg 40.0% · lower = better
Kyle Leahy
50.4%
Martín Pérez
36.3%
Barrel % Allowedlg 8.0% · lower = better
Kyle Leahy
11.3%
Martín Pérez
6.8%
xwOBA Allowedlg .315 · lower = better
Kyle Leahy
.359
Martín Pérez
.330
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
Kyle Leahy
25.95
lg xERA 4.10
now 4.25
5.05
Martín Pérez
25.95
lg xERA 4.10
now 2.79
4.42
WHIPlower is better
Kyle Leahy
.9001.76
now 1.56
1.41
Martín Pérez
.9001.76
now 1.06
1.37

Volume · rest of season
Strikeoutshigher is better
Kyle Leahy
4057.60
now 46
52
Martín Pérez
4057.60
now 42
46
Winshigher is better
Kyle Leahy
.00010.40
now 5
48
Martín Pérez
.00010.40
now 3
25

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

If you already own them — trade angle
SellKyle Leahy — sell.conf 0.90
Sell HighMartín Pérez — sell high. His value is peaking; good time to trade him.conf 0.95
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