MLB Daily DeltaWeek 18 · July 23, 2026
Portrait of Jack Leiter
Jack Leiter
TEX · P
Change to
Robert Gasser
MIL · 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

Jack Leiter wins 2 (K, W); Robert Gasser wins 2 (ERA, WHIP); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Jack Leiter
96.7
Robert Gasser
92.5
Swinging-Strike %lg 11.0% · higher = better
Jack Leiter
12.2%
Robert Gasser
11.8%
Strikeout %lg 22.0% · higher = better
Jack Leiter
23.4%
Robert Gasser
21.9%
Chase %lg 28.5% · higher = better
Jack Leiter
30.4%
Robert Gasser
29.2%
Hard-Hit % Allowedlg 40.0% · lower = better
Jack Leiter
39.9%
Robert Gasser
30.9%
Barrel % Allowedlg 8.0% · lower = better
Jack Leiter
10.3%
Robert Gasser
7.2%
xwOBA Allowedlg .315 · lower = better
Jack Leiter
.337
Robert Gasser
.304
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
3.515.08
lg xERA 4.10
now 4.34
4.58
Robert Gasser
3.515.08
lg xERA 4.10
now 4.73
3.86
WHIPlower is better
Jack Leiter
1.181.50
now 1.33
1.37
Robert Gasser
1.181.50
now 1.43
1.25

Volume · rest of season
Strikeoutshigher is better
Jack Leiter
4098.80
now 74
60
Robert Gasser
4098.80
now 12
32
Winshigher is better
Jack Leiter
.0004.20
now 3
23
Robert Gasser
.0004.20
now 0
00

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

If you already own them — trade angle
SellJack Leiter — sell.conf 0.77
Hold · leans buyRobert Gasser — hold.conf 0.60
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