MLB Daily DeltaWeek 19 · July 30, 2026
Portrait of Jeffrey Springs
Jeffrey Springs
ATH · P
Change to
Portrait of Kumar Rocker
Kumar Rocker
TEX · P
Change to
Who's more valuable, rest of season

Kumar Rocker.

He projects to help you in more roto categories the rest of the way — ERA and WHIP. Jeffrey Springs’s box score looks better right now, but the luck-stripped projection flips it.

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

Kumar Rocker wins 2 categories (ERA, WHIP); Jeffrey Springs wins 1 (K); 1 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Jeffrey Springs
91.4
Kumar Rocker
94.4
Swinging-Strike %lg 11.0% · higher = better
Jeffrey Springs
11.0%
Kumar Rocker
12.4%
Strikeout %lg 22.0% · higher = better
Jeffrey Springs
18.7%
Kumar Rocker
21.3%
Chase %lg 28.5% · higher = better
Jeffrey Springs
30.8%
Kumar Rocker
31.7%
Hard-Hit % Allowedlg 40.0% · lower = better
Jeffrey Springs
35.8%
Kumar Rocker
42.1%
Barrel % Allowedlg 8.0% · lower = better
Jeffrey Springs
9.6%
Kumar Rocker
7.3%
xwOBA Allowedlg .315 · lower = better
Jeffrey Springs
.338
Kumar Rocker
.329
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
Jeffrey Springs
3.115.04
lg xERA 4.10
now 4.07
4.61
Kumar Rocker
3.115.04
lg xERA 4.10
now 3.54
4.42
WHIPlower is better
Jeffrey Springs
1.121.43
now 1.19
1.36
Kumar Rocker
1.121.43
now 1.32
1.34

Volume · rest of season
Strikeoutshigher is better
Jeffrey Springs
4065.80
now 57
45
Kumar Rocker
4065.80
now 44
35
Winshigher is better
Jeffrey Springs
.2003.80
now 3
13
Kumar Rocker
.2003.80
now 2
12

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

If you already own them — trade angle
SellJeffrey Springs — sell.conf 0.79
SellKumar Rocker — sell.conf 0.70
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