MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Grant Anderson
Grant Anderson
MIL · 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 1–1, 2 even. Take whoever fills a bigger need.

Head-to-head
K
ERA
▶
◀
WHIP
W
SV n/a

Grant Anderson wins 1 (WHIP); Ryan Zeferjahn wins 1 (ERA); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Grant Anderson
93.5
Ryan Zeferjahn
97.5
Swinging-Strike %lg 11.0% · higher = better
Grant Anderson
12.3%
Ryan Zeferjahn
13.5%
Strikeout %lg 22.0% · higher = better
Grant Anderson
22.1%
Ryan Zeferjahn
31.0%
Chase %lg 28.5% · higher = better
Grant Anderson
29.1%
Ryan Zeferjahn
26.8%
Hard-Hit % Allowedlg 40.0% · lower = better
Grant Anderson
37.1%
Ryan Zeferjahn
35.6%
Barrel % Allowedlg 8.0% · lower = better
Grant Anderson
7.5%
Ryan Zeferjahn
5.6%
xwOBA Allowedlg .315 · lower = better
Grant Anderson
.275
Ryan Zeferjahn
.273
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
Grant Anderson
27
lg xERA 4.10
now 2.59
3.15
Ryan Zeferjahn
27
lg xERA 4.10
now 5.74
3.10
WHIPlower is better
Grant Anderson
.9001.55
now 0.99
1.32
Ryan Zeferjahn
.9001.55
now 1.39
1.33

Volume · rest of season
Strikeoutshigher is better
Grant Anderson
4044.80
now 18
0
Ryan Zeferjahn
4044.80
now 32
0
Winshigher is better
Grant Anderson
.0002.80
now 1
0–0
Ryan Zeferjahn
.0002.80
now 2
0–0

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

If you already own them — trade angle
BuyGrant Anderson — buy.conf 0.89
BuyRyan Zeferjahn — buy.conf 0.90
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