MLB Daily DeltaWeek 18 · July 27, 2026
Portrait of Luis Severino
Luis Severino
ATH · 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 22. Take whoever fills a bigger need.

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

Luis Severino wins 2 (K, ERA); Walker Buehler wins 2 (WHIP, W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Luis Severino
96.9
Walker Buehler
94.0
Swinging-Strike %lg 11.0% · higher = better
Luis Severino
10.9%
Walker Buehler
9.3%
Strikeout %lg 22.0% · higher = better
Luis Severino
24.0%
Walker Buehler
20.4%
Chase %lg 28.5% · higher = better
Luis Severino
31.3%
Walker Buehler
25.6%
Hard-Hit % Allowedlg 40.0% · lower = better
Luis Severino
38.7%
Walker Buehler
41.2%
Barrel % Allowedlg 8.0% · lower = better
Luis Severino
8.7%
Walker Buehler
8.5%
xwOBA Allowedlg .315 · lower = better
Luis Severino
.318
Walker Buehler
.322
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
Luis Severino
3.875.17
lg xERA 4.10
now 4.16
4.20
Walker Buehler
3.875.17
lg xERA 4.10
now 4.88
4.28
WHIPlower is better
Luis Severino
1.251.54
now 1.47
1.41
Walker Buehler
1.251.54
now 1.32
1.40

Volume · rest of season
Strikeoutshigher is better
Luis Severino
4075
now 65
50
Walker Buehler
4075
now 43
40
Winshigher is better
Luis Severino
.0005.20
now 2
12
Walker Buehler
.0005.20
now 3
24

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

If you already own them — trade angle
Hold · leans sellLuis Severino — hold.conf 0.60
Hold · leans sellWalker Buehler — hold.conf 0.60
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