MLB Daily DeltaWeek 18 · July 23, 2026
Portrait of Pierce Johnson
Pierce Johnson
CIN · 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 and ERA. Pierce Johnson’s box score looks better right now, but it’s built on luck that won’t hold.

Head-to-head
K
ERA
WHIP
W
SV

Ryan Zeferjahn wins 2 categories (K, ERA); Pierce Johnson wins 1 (WHIP); 2 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Pierce Johnson
95.3
Ryan Zeferjahn
97.4
Swinging-Strike %lg 11.0% · higher = better
Pierce Johnson
11.3%
Ryan Zeferjahn
13.8%
Strikeout %lg 22.0% · higher = better
Pierce Johnson
20.6%
Ryan Zeferjahn
32.5%
Chase %lg 28.5% · higher = better
Pierce Johnson
33.6%
Ryan Zeferjahn
23.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Pierce Johnson
40.9%
Ryan Zeferjahn
34.7%
Barrel % Allowedlg 8.0% · lower = better
Pierce Johnson
12.5%
Ryan Zeferjahn
6.1%
xwOBA Allowedlg .315 · lower = better
Pierce Johnson
.370
Ryan Zeferjahn
.274
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
Pierce Johnson
2.046.80
lg xERA 4.10
now 3.27
3.74
Ryan Zeferjahn
2.046.80
lg xERA 4.10
now 5.74
3.10
WHIPlower is better
Pierce Johnson
1.161.46
now 1.23
1.24
Ryan Zeferjahn
1.161.46
now 1.39
1.35

Volume · rest of season
Strikeoutshigher is better
Pierce Johnson
4037.60
now 20
21
Ryan Zeferjahn
4037.60
now 32
24
Winshigher is better
Pierce Johnson
.2003.80
now 2
13
Ryan Zeferjahn
.2003.80
now 2
12
Saveshigher is better
Pierce Johnson
.0003.40
now 1
02
Ryan Zeferjahn
.0003.40
now 1
01
If you already own them — trade angle
Sell HighPierce Johnson — sell high. His value is peaking; good time to trade him.conf 0.84
BuyRyan Zeferjahn — buy.conf 0.90
Tweet