MLB Daily DeltaWeek 13 · June 19, 2026
Portrait of Dylan Lee
Dylan Lee
ATL · 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, wins, and saves. Dylan Lee’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 3 categories (K, W, SV); Dylan Lee wins 2 (ERA, WHIP).

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Dylan Lee
93.3
Ryan Zeferjahn
97.3
Swinging-Strike %lg 11.0% · higher = better
Dylan Lee
20.6%
Ryan Zeferjahn
11.8%
Strikeout %lg 22.0% · higher = better
Dylan Lee
34.8%
Ryan Zeferjahn
28.2%
Chase %lg 28.5% · higher = better
Dylan Lee
36.4%
Ryan Zeferjahn
22.4%
Hard-Hit % Allowedlg 40.0% · lower = better
Dylan Lee
32.9%
Ryan Zeferjahn
36.8%
Barrel % Allowedlg 8.0% · lower = better
Dylan Lee
4.3%
Ryan Zeferjahn
5.3%
xwOBA Allowedlg .315 · lower = better
Dylan Lee
.212
Ryan Zeferjahn
.302
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
Dylan Lee
27.52
lg xERA 4.10
now 1.30
3.57
Ryan Zeferjahn
27.52
lg xERA 4.10
now 5.74
3.70
WHIPlower is better
Dylan Lee
.9001.70
now 0.61
1.22
Ryan Zeferjahn
.9001.70
now 1.39
1.26

Volume · rest of season
Strikeoutshigher is better
Dylan Lee
4047.60
now 34
37
Ryan Zeferjahn
4047.60
now 32
42
Winshigher is better
Dylan Lee
.0005.20
now 2
14
Ryan Zeferjahn
.0005.20
now 2
14
Saveshigher is better
Dylan Lee
.0003.40
now 0
0
Ryan Zeferjahn
.0003.40
now 1
12
If you already own them — trade angle
Sell HighDylan Lee — sell high. His value is peaking; good time to trade him.conf 0.82
Hold · wait & seeRyan Zeferjahn — hold.conf 0.50
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