MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Framber Valdez
Framber Valdez
DET · P
Change to
Portrait of Luis Severino
Luis Severino
ATH · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 1–1, 2 even. Take whoever fills a bigger need.

Head-to-head
K
ERA
▶
◀
WHIP
W
SV n/a

Framber Valdez wins 1 (WHIP); Luis Severino wins 1 (ERA); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Framber Valdez
94.7
Luis Severino
96.9
Swinging-Strike %lg 11.0% · higher = better
Framber Valdez
9.6%
Luis Severino
10.9%
Strikeout %lg 22.0% · higher = better
Framber Valdez
17.8%
Luis Severino
24.0%
Chase %lg 28.5% · higher = better
Framber Valdez
30.8%
Luis Severino
31.3%
Hard-Hit % Allowedlg 40.0% · lower = better
Framber Valdez
41.9%
Luis Severino
38.7%
Barrel % Allowedlg 8.0% · lower = better
Framber Valdez
5.5%
Luis Severino
8.7%
xwOBA Allowedlg .315 · lower = better
Framber Valdez
.321
Luis Severino
.318
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
Framber Valdez
3.944.61
lg xERA 4.10
now 4.39
4.28
Luis Severino
3.944.61
lg xERA 4.10
now 4.16
4.22
WHIPlower is better
Framber Valdez
1.251.54
now 1.32
1.40
Luis Severino
1.251.54
now 1.47
1.41

Volume · rest of season
Strikeoutshigher is better
Framber Valdez
4091
now 54
0
Luis Severino
4091
now 65
0
Winshigher is better
Framber Valdez
.0002.80
now 2
0–0
Luis Severino
.0002.80
now 2
0–0

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

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