MLB Daily DeltaWeek 18 · July 23, 2026
Portrait of Brandon Pfaadt
Brandon Pfaadt
AZ · P
Change to
Portrait of Juan Mejia
Juan Mejia
COL · 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

Brandon Pfaadt wins 2 (K, WHIP); Juan Mejia wins 2 (W, SV); 1 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Brandon Pfaadt
93.3
Juan Mejia
97.4
Swinging-Strike %lg 11.0% · higher = better
Brandon Pfaadt
10.1%
Juan Mejia
13.0%
Strikeout %lg 22.0% · higher = better
Brandon Pfaadt
17.3%
Juan Mejia
22.9%
Chase %lg 28.5% · higher = better
Brandon Pfaadt
31.4%
Juan Mejia
31.9%
Hard-Hit % Allowedlg 40.0% · lower = better
Brandon Pfaadt
37.2%
Juan Mejia
40.0%
Barrel % Allowedlg 8.0% · lower = better
Brandon Pfaadt
9.0%
Juan Mejia
3.8%
xwOBA Allowedlg .315 · lower = better
Brandon Pfaadt
.317
Juan Mejia
.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
Brandon Pfaadt
3.246.79
lg xERA 4.10
now 5.59
4.04
Juan Mejia
3.246.79
lg xERA 4.10
now 6.00
4.03
WHIPlower is better
Brandon Pfaadt
1.181.85
now 1.41
1.33
Juan Mejia
1.181.85
now 1.70
1.41

Volume · rest of season
Strikeoutshigher is better
Brandon Pfaadt
4035.60
now 30
30
Juan Mejia
4035.60
now 30
24
Winshigher is better
Brandon Pfaadt
.0001.48
now 0
00
Juan Mejia
.0001.48
now 1
11
Saveshigher is better
Brandon Pfaadt
.0004.40
now 0
0
Juan Mejia
.0004.40
now 3
23
If you already own them — trade angle
Hold · steadyBrandon Pfaadt — hold.conf 0.60
Buy LowJuan Mejia — buy low. The dip is a window to acquire.conf 0.90
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