MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Adrian Houser
Adrian Houser
SF · P
Change to
Portrait of Jack Leiter
Jack Leiter
TEX · 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

Adrian Houser wins 1 (WHIP); Jack Leiter 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
Adrian Houser
95.7
Jack Leiter
96.7
Swinging-Strike %lg 11.0% · higher = better
Adrian Houser
8.4%
Jack Leiter
12.2%
Strikeout %lg 22.0% · higher = better
Adrian Houser
16.0%
Jack Leiter
23.4%
Chase %lg 28.5% · higher = better
Adrian Houser
25.8%
Jack Leiter
30.4%
Hard-Hit % Allowedlg 40.0% · lower = better
Adrian Houser
42.0%
Jack Leiter
39.9%
Barrel % Allowedlg 8.0% · lower = better
Adrian Houser
8.7%
Jack Leiter
10.3%
xwOBA Allowedlg .315 · lower = better
Adrian Houser
.339
Jack Leiter
.336
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
Adrian Houser
3.846.09
lg xERA 4.10
now 5.59
4.65
Jack Leiter
3.846.09
lg xERA 4.10
now 4.34
4.59
WHIPlower is better
Adrian Houser
1.241.65
now 1.56
1.35
Jack Leiter
1.241.65
now 1.33
1.37

Volume · rest of season
Strikeoutshigher is better
Adrian Houser
40103.60
now 35
0
Jack Leiter
40103.60
now 74
0
Winshigher is better
Adrian Houser
.0004.20
now 2
0–0
Jack Leiter
.0004.20
now 3
0–0

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

If you already own them — trade angle
SellAdrian Houser — sell.conf 0.81
SellJack Leiter — sell.conf 0.78
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