MLB Daily DeltaWeek 25 · September 11, 2026
Portrait of Jack Leiter
Jack Leiter
TEX · P
Change to
Portrait of Lucas Giolito
Lucas Giolito
SD · P
Change to
Who's more valuable, rest of season

Lucas Giolito.

He projects to help you in more roto categories the rest of the way — ERA and WHIP. Jack Leiter’s box score looks better right now, but the luck-stripped projection flips it.

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

Lucas Giolito wins 2 categories (ERA, WHIP); Jack Leiter wins 1 (K); 1 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
Lucas Giolito
90.8
Swinging-Strike %lg 11.0% · higher = better
Jack Leiter
12.2%
Lucas Giolito
9.8%
Strikeout %lg 22.0% · higher = better
Jack Leiter
23.4%
Lucas Giolito
13.0%
Chase %lg 28.5% · higher = better
Jack Leiter
30.4%
Lucas Giolito
19.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Jack Leiter
39.9%
Lucas Giolito
43.8%
Barrel % Allowedlg 8.0% · lower = better
Jack Leiter
10.3%
Lucas Giolito
4.2%
xwOBA Allowedlg .315 · lower = better
Jack Leiter
.337
Lucas Giolito
.358
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
3.755.32
lg xERA 4.10
now 4.34
4.59
Lucas Giolito
3.755.32
lg xERA 4.10
now 4.97
4.10
WHIPlower is better
Jack Leiter
1.121.92
now 1.33
1.37
Lucas Giolito
1.121.92
now 1.74
1.30

Volume · rest of season
Strikeoutshigher is better
Jack Leiter
40101.20
now 74
13
Lucas Giolito
40101.20
now 6
7
Winshigher is better
Jack Leiter
.0004.20
now 3
01
Lucas Giolito
.0004.20
now 2
12

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

If you already own them — trade angle
SellJack Leiter — sell.conf 0.78
Hold · wait & seeLucas Giolito — hold.conf 0.50
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