MLB Daily DeltaWeek 18 · July 28, 2026
Portrait of Nate Pearson
Nate Pearson
KC · P
Change to
Portrait of Ryan Zeferjahn
Ryan Zeferjahn
LAA · P
Change to
Who's more valuable, rest of season

Ryan Zeferjahn.

He projects to help you in more roto categories the rest of the way — strikeouts, ERA, and wins.

Head-to-head
K
ERA
WHIP
W
SV

Ryan Zeferjahn wins 3 categories (K, ERA, W); Nate Pearson wins 2 (WHIP, SV).

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Nate Pearson
97.7
Ryan Zeferjahn
97.4
Swinging-Strike %lg 11.0% · higher = better
Nate Pearson
10.2%
Ryan Zeferjahn
13.8%
Strikeout %lg 22.0% · higher = better
Nate Pearson
18.4%
Ryan Zeferjahn
32.7%
Chase %lg 28.5% · higher = better
Nate Pearson
29.4%
Ryan Zeferjahn
23.7%
Hard-Hit % Allowedlg 40.0% · lower = better
Nate Pearson
33.3%
Ryan Zeferjahn
35.3%
Barrel % Allowedlg 8.0% · lower = better
Nate Pearson
7.0%
Ryan Zeferjahn
5.9%
xwOBA Allowedlg .315 · lower = better
Nate Pearson
.333
Ryan Zeferjahn
.272
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
Nate Pearson
28.04
lg xERA 4.10
now 0.00
3.70
Ryan Zeferjahn
28.04
lg xERA 4.10
now 5.74
3.04
WHIPlower is better
Nate Pearson
.9701.51
now 1.09
1.24
Ryan Zeferjahn
.9701.51
now 1.39
1.35

Volume · rest of season
Strikeoutshigher is better
Nate Pearson
4044
now 2
9
Ryan Zeferjahn
4044
now 32
21
Winshigher is better
Nate Pearson
.0002.80
now 0
00
Ryan Zeferjahn
.0002.80
now 2
12
Saveshigher is better
Nate Pearson
.0009.80
now 1
27
Ryan Zeferjahn
.0009.80
now 1
01
If you already own them — trade angle
Sell HighNate Pearson — sell high. His value is peaking; good time to trade him.conf 0.95
BuyRyan Zeferjahn — buy.conf 0.92
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