MLB Daily DeltaWeek 25 · September 10, 2026
Portrait of Kirby Yates
Kirby Yates
PIT · 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

Kirby Yates 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
Kirby Yates
90.8
Michael Rucker
96.2
Swinging-Strike %lg 11.0% · higher = better
Kirby Yates
15.1%
Michael Rucker
11.6%
Strikeout %lg 22.0% · higher = better
Kirby Yates
27.8%
Michael Rucker
26.9%
Chase %lg 28.5% · higher = better
Kirby Yates
35.0%
Michael Rucker
32.3%
Hard-Hit % Allowedlg 40.0% · lower = better
Kirby Yates
46.5%
Michael Rucker
39.2%
Barrel % Allowedlg 8.0% · lower = better
Kirby Yates
5.9%
Michael Rucker
9.8%
xwOBA Allowedlg .315 · lower = better
Kirby Yates
.287
Michael Rucker
.315
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
Kirby Yates
3.384.82
lg xERA 4.10
now 4.32
3.70
Michael Rucker
3.384.82
lg xERA 4.10
now 4.50
3.70
WHIPlower is better
Kirby Yates
.9001.54
now 1.20
1.24
Michael Rucker
.9001.54
now 0.50
1.24

Volume · rest of season
Strikeoutshigher is better
Kirby Yates
4015.60
now 10
5
Michael Rucker
4015.60
now 3
5
Winshigher is better
Kirby Yates
.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
Hold · wait & seeKirby Yates — hold.conf 0.50
Buy LowMichael Rucker — buy low. The dip is a window to acquire.conf 0.90
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