MLB Daily DeltaWeek 25 · September 11, 2026
Portrait of Colin Holderman
Colin Holderman
CLE · P
Change to
Portrait of Ian Seymour
Ian Seymour
TB · P
Change to
Who's more valuable, rest of season

Ian Seymour.

He projects to help you in more roto categories the rest of the way — ERA and WHIP. Colin Holderman’s box score looks better right now, but it’s built on luck that won’t hold.

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

Ian Seymour wins 2 categories (ERA, WHIP); Colin Holderman wins 1 (W); 1 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Colin Holderman
97.0
Ian Seymour
91.4
Swinging-Strike %lg 11.0% · higher = better
Colin Holderman
12.0%
Ian Seymour
14.9%
Strikeout %lg 22.0% · higher = better
Colin Holderman
22.5%
Ian Seymour
28.8%
Chase %lg 28.5% · higher = better
Colin Holderman
29.8%
Ian Seymour
35.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Colin Holderman
44.4%
Ian Seymour
36.2%
Barrel % Allowedlg 8.0% · lower = better
Colin Holderman
7.7%
Ian Seymour
10.0%
xwOBA Allowedlg .315 · lower = better
Colin Holderman
.303
Ian Seymour
.295
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
Colin Holderman
25.67
lg xERA 4.10
now 2.14
3.79
Ian Seymour
25.67
lg xERA 4.10
now 4.66
3.63
WHIPlower is better
Colin Holderman
.9001.50
now 0.81
1.30
Ian Seymour
.9001.50
now 1.28
1.15

Volume · rest of season
Strikeoutshigher is better
Colin Holderman
4042.80
now 23
5
Ian Seymour
4042.80
now 32
5
Winshigher is better
Colin Holderman
.0004.20
now 3
01
Ian Seymour
.0004.20
now 3
01

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

If you already own them — trade angle
Sell HighColin Holderman — sell high. His value is peaking; good time to trade him.conf 0.95
BuyIan Seymour — buy.conf 0.74
Tweet