MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Kumar Rocker
Kumar Rocker
TEX · P
Change to
Portrait of Kyle Leahy
Kyle Leahy
STL · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 1–1, 2 even. Take whoever fills a bigger need.

Head-to-head
K
◀
ERA
WHIP
▶
W
SV n/a

Kumar Rocker wins 1 (ERA); Kyle Leahy wins 1 (WHIP); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Kumar Rocker
94.5
Kyle Leahy
94.3
Swinging-Strike %lg 11.0% · higher = better
Kumar Rocker
12.5%
Kyle Leahy
10.5%
Strikeout %lg 22.0% · higher = better
Kumar Rocker
21.4%
Kyle Leahy
22.1%
Chase %lg 28.5% · higher = better
Kumar Rocker
31.4%
Kyle Leahy
27.2%
Hard-Hit % Allowedlg 40.0% · lower = better
Kumar Rocker
40.0%
Kyle Leahy
47.0%
Barrel % Allowedlg 8.0% · lower = better
Kumar Rocker
7.5%
Kyle Leahy
9.8%
xwOBA Allowedlg .315 · lower = better
Kumar Rocker
.324
Kyle Leahy
.337
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
Kumar Rocker
3.115.04
lg xERA 4.10
now 3.54
4.34
Kyle Leahy
3.115.04
lg xERA 4.10
now 4.25
4.61
WHIPlower is better
Kumar Rocker
1.221.66
now 1.32
1.38
Kyle Leahy
1.221.66
now 1.56
1.34

Volume · rest of season
Strikeoutshigher is better
Kumar Rocker
4064.40
now 44
0
Kyle Leahy
4064.40
now 46
0
Winshigher is better
Kumar Rocker
.0007
now 2
0–0
Kyle Leahy
.0007
now 5
0–0

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

If you already own them — trade angle
SellKumar Rocker — sell.conf 0.66
SellKyle Leahy — sell.conf 0.78
Tweet