MLB Daily DeltaWeek 13 · June 22, 2026
Portrait of Juan Mejia
Juan Mejia
COL · P
Change to
Ryan Walker
SF · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 22, 1 even. Take whoever fills a bigger need.

Head-to-head
K
ERA
WHIP
W
SV

Juan Mejia wins 2 (K, W); Ryan Walker wins 2 (WHIP, SV); 1 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Juan Mejia
97.6
Ryan Walker
94.9
Swinging-Strike %lg 11.0% · higher = better
Juan Mejia
14.3%
Ryan Walker
7.3%
Strikeout %lg 22.0% · higher = better
Juan Mejia
24.5%
Ryan Walker
19.5%
Chase %lg 28.5% · higher = better
Juan Mejia
33.0%
Ryan Walker
26.3%
Hard-Hit % Allowedlg 40.0% · lower = better
Juan Mejia
38.0%
Ryan Walker
29.3%
Barrel % Allowedlg 8.0% · lower = better
Juan Mejia
3.3%
Ryan Walker
5.2%
xwOBA Allowedlg .315 · lower = better
Juan Mejia
.305
Ryan Walker
.316
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
Juan Mejia
2.607.56
lg xERA 4.10
now 6.00
3.71
Ryan Walker
2.607.56
lg xERA 4.10
now 6.46
3.70
WHIPlower is better
Juan Mejia
.9802.15
now 1.70
1.26
Ryan Walker
.9802.15
now 1.89
1.24

Volume · rest of season
Strikeoutshigher is better
Juan Mejia
4047.60
now 30
38
Ryan Walker
4047.60
now 14
33
Winshigher is better
Juan Mejia
.0002.80
now 1
12
Ryan Walker
.0002.80
now 0
00
Saveshigher is better
Juan Mejia
1.408.60
now 3
35
Ryan Walker
1.408.60
now 3
47
If you already own them — trade angle
Buy LowJuan Mejia — buy low. The dip is a window to acquire.conf 0.90
Buy LowRyan Walker — buy low. The dip is a window to acquire.conf 0.90
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