MLB Daily DeltaWeek 18 · July 27, 2026
Portrait of Justin Slaten
Justin Slaten
BOS · P
Change to
Michael Rucker
SEA · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 00, 4 even. Take whoever fills a bigger need.

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

Justin Slaten wins 0 (none); Michael Rucker wins 0 (none); 4 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Justin Slaten
96.6
Michael Rucker
95.9
Swinging-Strike %lg 11.0% · higher = better
Justin Slaten
12.5%
Michael Rucker
13.4%
Strikeout %lg 22.0% · higher = better
Justin Slaten
30.3%
Michael Rucker
27.6%
Chase %lg 28.5% · higher = better
Justin Slaten
29.8%
Michael Rucker
35.9%
Hard-Hit % Allowedlg 40.0% · lower = better
Justin Slaten
41.4%
Michael Rucker
41.7%
Barrel % Allowedlg 8.0% · lower = better
Justin Slaten
5.7%
Michael Rucker
6.3%
xwOBA Allowedlg .315 · lower = better
Justin Slaten
.277
Michael Rucker
.299
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
Justin Slaten
3.244.86
lg xERA 4.10
now 3.60
3.70
Michael Rucker
3.244.86
lg xERA 4.10
now 4.50
3.70
WHIPlower is better
Justin Slaten
.9001.62
now 1.30
1.24
Michael Rucker
.9001.62
now 0.50
1.24

Volume · rest of season
Strikeoutshigher is better
Justin Slaten
4025.40
now 14
19
Michael Rucker
4025.40
now 3
19
Winshigher is better
Justin Slaten
.000.480
now 0
00
Michael Rucker
.000.480
now 0
00

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

If you already own them — trade angle
Buy LowJustin Slaten — buy low. The dip is a window to acquire.conf 0.90
Buy LowMichael Rucker — buy low. The dip is a window to acquire.conf 0.85
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