MLB Daily DeltaWeek 17 · July 21, 2026
Portrait of Luis Severino
Luis Severino
ATH · 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

Luis Severino 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
Luis Severino
96.9
Robert Gasser
92.5
Swinging-Strike %lg 11.0% · higher = better
Luis Severino
10.9%
Robert Gasser
11.8%
Strikeout %lg 22.0% · higher = better
Luis Severino
24.0%
Robert Gasser
21.9%
Chase %lg 28.5% · higher = better
Luis Severino
31.3%
Robert Gasser
29.2%
Hard-Hit % Allowedlg 40.0% · lower = better
Luis Severino
38.7%
Robert Gasser
30.9%
Barrel % Allowedlg 8.0% · lower = better
Luis Severino
8.7%
Robert Gasser
7.2%
xwOBA Allowedlg .315 · lower = better
Luis Severino
.318
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
Luis Severino
3.505.08
lg xERA 4.10
now 4.16
4.20
Robert Gasser
3.505.08
lg xERA 4.10
now 4.73
3.85
WHIPlower is better
Luis Severino
1.161.56
now 1.47
1.41
Robert Gasser
1.161.56
now 1.43
1.25

Volume · rest of season
Strikeoutshigher is better
Luis Severino
4086.20
now 65
57
Robert Gasser
4086.20
now 12
33
Winshigher is better
Luis Severino
.0002.80
now 2
12
Robert Gasser
.0002.80
now 0
00

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

If you already own them — trade angle
Hold · steadyLuis Severino — hold.conf 0.60
Hold · leans buyRobert Gasser — hold.conf 0.60
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