MLB Daily DeltaWeek 25 · September 11, 2026
Portrait of Jack Leiter
Jack Leiter
TEX · P
Change to
Portrait of Walker Buehler
Walker Buehler
SD · 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

Jack Leiter wins 1 (K); Walker Buehler wins 1 (ERA); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Jack Leiter
96.7
Walker Buehler
94.1
Swinging-Strike %lg 11.0% · higher = better
Jack Leiter
12.2%
Walker Buehler
9.0%
Strikeout %lg 22.0% · higher = better
Jack Leiter
23.4%
Walker Buehler
20.6%
Chase %lg 28.5% · higher = better
Jack Leiter
30.4%
Walker Buehler
27.3%
Hard-Hit % Allowedlg 40.0% · lower = better
Jack Leiter
39.9%
Walker Buehler
38.5%
Barrel % Allowedlg 8.0% · lower = better
Jack Leiter
10.3%
Walker Buehler
8.3%
xwOBA Allowedlg .315 · lower = better
Jack Leiter
.337
Walker Buehler
.314
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
Jack Leiter
3.835.18
lg xERA 4.10
now 4.34
4.59
Walker Buehler
3.835.18
lg xERA 4.10
now 4.88
4.13
WHIPlower is better
Jack Leiter
1.251.44
now 1.33
1.37
Walker Buehler
1.251.44
now 1.32
1.37

Volume · rest of season
Strikeoutshigher is better
Jack Leiter
4099.60
now 74
13
Walker Buehler
4099.60
now 43
10
Winshigher is better
Jack Leiter
.0004.20
now 3
01
Walker Buehler
.0004.20
now 3
01

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

If you already own them — trade angle
SellJack Leiter — sell.conf 0.78
Hold · steadyWalker Buehler — hold.conf 0.60
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