MLB Daily DeltaWeek 16 · July 15, 2026
Portrait of Colin Holderman
Colin Holderman
CLE · P
Change to
Portrait of Jack Perkins
Jack Perkins
ATH · P
Change to
Who's more valuable, rest of season

Colin Holderman.

He projects to help you in more roto categories the rest of the way — ERA, WHIP, and wins.

Head-to-head
K
ERA
WHIP
W
SV

Colin Holderman wins 3 categories (ERA, WHIP, W); Jack Perkins wins 2 (K, SV).

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Colin Holderman
97.4
Jack Perkins
96.0
Swinging-Strike %lg 11.0% · higher = better
Colin Holderman
12.4%
Jack Perkins
13.2%
Strikeout %lg 22.0% · higher = better
Colin Holderman
28.3%
Jack Perkins
27.3%
Chase %lg 28.5% · higher = better
Colin Holderman
30.7%
Jack Perkins
33.7%
Hard-Hit % Allowedlg 40.0% · lower = better
Colin Holderman
49.4%
Jack Perkins
39.4%
Barrel % Allowedlg 8.0% · lower = better
Colin Holderman
8.2%
Jack Perkins
8.0%
xwOBA Allowedlg .315 · lower = better
Colin Holderman
.274
Jack Perkins
.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
Colin Holderman
26.79
lg xERA 4.10
now 2.14
3.69
Jack Perkins
26.79
lg xERA 4.10
now 5.46
4.04
WHIPlower is better
Colin Holderman
.9001.47
now 0.81
1.24
Jack Perkins
.9001.47
now 1.21
1.28

Volume · rest of season
Strikeoutshigher is better
Colin Holderman
4038.60
now 23
22
Jack Perkins
4038.60
now 33
30
Winshigher is better
Colin Holderman
.0006.60
now 3
25
Jack Perkins
.0006.60
now 2
13
Saveshigher is better
Colin Holderman
.0005.60
now 0
0
Jack Perkins
.0005.60
now 3
24
If you already own them — trade angle
Sell HighColin Holderman — sell high. His value is peaking; good time to trade him.conf 0.95
Buy LowJack Perkins — buy low. The dip is a window to acquire.conf 0.90
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