MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Kumar Rocker
Kumar Rocker
TEX · P
Change to
Portrait of Ryne Nelson
Ryne Nelson
AZ · 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

Kumar Rocker wins 1 (ERA); Ryne Nelson wins 1 (WHIP); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Kumar Rocker
94.5
Ryne Nelson
96.4
Swinging-Strike %lg 11.0% · higher = better
Kumar Rocker
12.5%
Ryne Nelson
11.4%
Strikeout %lg 22.0% · higher = better
Kumar Rocker
21.4%
Ryne Nelson
17.4%
Chase %lg 28.5% · higher = better
Kumar Rocker
31.4%
Ryne Nelson
33.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Kumar Rocker
40.0%
Ryne Nelson
43.8%
Barrel % Allowedlg 8.0% · lower = better
Kumar Rocker
7.5%
Ryne Nelson
10.2%
xwOBA Allowedlg .315 · lower = better
Kumar Rocker
.324
Ryne Nelson
.351
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
Kumar Rocker
2.995.47
lg xERA 4.10
now 3.54
4.34
Ryne Nelson
2.995.47
lg xERA 4.10
now 4.82
4.92
WHIPlower is better
Kumar Rocker
1.111.46
now 1.32
1.38
Ryne Nelson
1.111.46
now 1.19
1.29

Volume · rest of season
Strikeoutshigher is better
Kumar Rocker
4072.80
now 44
0
Ryne Nelson
4072.80
now 52
0
Winshigher is better
Kumar Rocker
.0002.80
now 2
0–0
Ryne Nelson
.0002.80
now 2
0–0

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

If you already own them — trade angle
SellKumar Rocker — sell.conf 0.66
Sell HighRyne Nelson — sell high. His value is peaking; good time to trade him.conf 0.88
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