MLB Daily DeltaWeek 25 · September 10, 2026
Javier Assad
CHC · P
Change to
Portrait of Ryan Zeferjahn
Ryan Zeferjahn
CHC · P
Change to
Who's more valuable, rest of season

Too close to call.

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

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

Javier Assad wins 2 (WHIP, W); Ryan Zeferjahn wins 2 (K, ERA); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Javier Assad
93.4
Ryan Zeferjahn
97.4
Swinging-Strike %lg 11.0% · higher = better
Javier Assad
6.5%
Ryan Zeferjahn
13.0%
Strikeout %lg 22.0% · higher = better
Javier Assad
16.5%
Ryan Zeferjahn
31.2%
Chase %lg 28.5% · higher = better
Javier Assad
22.3%
Ryan Zeferjahn
25.3%
Hard-Hit % Allowedlg 40.0% · lower = better
Javier Assad
45.7%
Ryan Zeferjahn
36.1%
Barrel % Allowedlg 8.0% · lower = better
Javier Assad
6.8%
Ryan Zeferjahn
6.1%
xwOBA Allowedlg .315 · lower = better
Javier Assad
.330
Ryan Zeferjahn
.278
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
Javier Assad
2.136.95
lg xERA 4.10
now 5.88
4.30
Ryan Zeferjahn
2.136.95
lg xERA 4.10
now 5.74
3.20
WHIPlower is better
Javier Assad
1.201.46
now 1.27
1.30
Ryan Zeferjahn
1.201.46
now 1.39
1.33

Volume · rest of season
Strikeoutshigher is better
Javier Assad
4042.80
now 14
5
Ryan Zeferjahn
4042.80
now 32
6
Winshigher is better
Javier Assad
.0004.20
now 3
11
Ryan Zeferjahn
.0004.20
now 2
01

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

If you already own them — trade angle
Sell HighJavier Assad — sell high. His value is peaking; good time to trade him.conf 0.95
BuyRyan Zeferjahn — buy.conf 0.87
Tweet