MLB Daily DeltaWeek 13 · June 23, 2026
Jack Dreyer
LAD · P
Change to
Portrait of Ryan Zeferjahn
Ryan Zeferjahn
LAA · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 22, 1 even. Take whoever fills a bigger need.

Head-to-head
K
ERA
WHIP
W
SV

Jack Dreyer wins 2 (WHIP, W); Ryan Zeferjahn wins 2 (K, SV); 1 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Jack Dreyer
93.5
Ryan Zeferjahn
97.4
Swinging-Strike %lg 11.0% · higher = better
Jack Dreyer
13.1%
Ryan Zeferjahn
12.4%
Strikeout %lg 22.0% · higher = better
Jack Dreyer
28.5%
Ryan Zeferjahn
28.7%
Chase %lg 28.5% · higher = better
Jack Dreyer
30.9%
Ryan Zeferjahn
22.6%
Hard-Hit % Allowedlg 40.0% · lower = better
Jack Dreyer
40.0%
Ryan Zeferjahn
35.0%
Barrel % Allowedlg 8.0% · lower = better
Jack Dreyer
8.8%
Ryan Zeferjahn
5.0%
xwOBA Allowedlg .315 · lower = better
Jack Dreyer
.289
Ryan Zeferjahn
.296
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
Jack Dreyer
26.92
lg xERA 4.10
now 2.78
3.69
Ryan Zeferjahn
26.92
lg xERA 4.10
now 5.74
3.69
WHIPlower is better
Jack Dreyer
.9001.54
now 1.01
1.24
Ryan Zeferjahn
.9001.54
now 1.39
1.26

Volume · rest of season
Strikeoutshigher is better
Jack Dreyer
4045
now 24
30
Ryan Zeferjahn
4045
now 32
39
Winshigher is better
Jack Dreyer
.0005.20
now 2
14
Ryan Zeferjahn
.0005.20
now 2
14
Saveshigher is better
Jack Dreyer
.0003.40
now 0
0
Ryan Zeferjahn
.0003.40
now 1
02
If you already own them — trade angle
Hold · wait & seeJack Dreyer — hold.conf 0.50
Hold · wait & seeRyan Zeferjahn — hold.conf 0.50
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