MLB Daily DeltaWeek 13 · June 23, 2026
Portrait of Lucas Giolito
Lucas Giolito
SD · P
Change to
Portrait of Stephen Kolek
Stephen Kolek
KC · P
Change to
Who's more valuable, rest of season

Stephen Kolek.

He projects to help you in more roto categories the rest of the way — strikeouts and ERA.

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

Stephen Kolek wins 2 categories (K, ERA); Lucas Giolito wins 1 (W); 1 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Lucas Giolito
90.8
Stephen Kolek
94.1
Swinging-Strike %lg 11.0% · higher = better
Lucas Giolito
9.8%
Stephen Kolek
9.7%
Strikeout %lg 22.0% · higher = better
Lucas Giolito
13.0%
Stephen Kolek
16.0%
Chase %lg 28.5% · higher = better
Lucas Giolito
19.0%
Stephen Kolek
26.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Lucas Giolito
43.8%
Stephen Kolek
38.6%
Barrel % Allowedlg 8.0% · lower = better
Lucas Giolito
4.2%
Stephen Kolek
7.2%
xwOBA Allowedlg .315 · lower = better
Lucas Giolito
.358
Stephen Kolek
.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
Lucas Giolito
2.885.57
lg xERA 4.10
now 4.97
4.10
Stephen Kolek
2.885.57
lg xERA 4.10
now 3.48
3.79
WHIPlower is better
Lucas Giolito
.9002.06
now 1.74
1.30
Stephen Kolek
.9002.06
now 0.94
1.30

Volume · rest of season
Strikeoutshigher is better
Lucas Giolito
4063.40
now 6
42
Stephen Kolek
4063.40
now 19
47
Winshigher is better
Lucas Giolito
.00017.40
now 2
613
Stephen Kolek
.00017.40
now 3
510

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

If you already own them — trade angle
Hold · wait & seeLucas Giolito — hold.conf 0.50
BuyStephen Kolek — buy.conf 0.69
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