MLB Daily DeltaWeek 27 · September 30, 2026
Portrait of Ryan Rolison
Ryan Rolison
CHC · P
Change to
Portrait of Tim Herrin
Tim Herrin
CLE · 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

Ryan Rolison wins 1 (WHIP); Tim Herrin 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
Ryan Rolison
94.7
Tim Herrin
94.7
Swinging-Strike %lg 11.0% · higher = better
Ryan Rolison
9.0%
Tim Herrin
14.4%
Strikeout %lg 22.0% · higher = better
Ryan Rolison
21.5%
Tim Herrin
22.5%
Chase %lg 28.5% · higher = better
Ryan Rolison
26.5%
Tim Herrin
32.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Ryan Rolison
38.6%
Tim Herrin
37.3%
Barrel % Allowedlg 8.0% · lower = better
Ryan Rolison
6.9%
Tim Herrin
8.5%
xwOBA Allowedlg .315 · lower = better
Ryan Rolison
.309
Tim Herrin
.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
Ryan Rolison
2.484.32
lg xERA 4.10
now 2.89
3.91
Tim Herrin
2.484.32
lg xERA 4.10
now 3.32
3.82
WHIPlower is better
Ryan Rolison
1.291.73
now 1.39
1.39
Tim Herrin
1.291.73
now 1.63
1.40

Volume · rest of season
Strikeoutshigher is better
Ryan Rolison
4022.40
now 16
0
Tim Herrin
4022.40
now 16
0
Winshigher is better
Ryan Rolison
.0004.20
now 3
0–0
Tim Herrin
.0004.20
now 0
0–0

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

If you already own them — trade angle
Hold · steadyRyan Rolison — hold.conf 0.60
Hold · leans buyTim Herrin — hold.conf 0.60
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