MLB Daily DeltaWeek 19 · August 5, 2026
Portrait of Brandon Pfaadt
Brandon Pfaadt
AZ · P
Change to
Zack Kelly
BOS · P
Change to
Who's more valuable, rest of season

Zack Kelly.

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

Head-to-head
K
ERA
WHIP
W
SV n/a

Zack Kelly wins 2 categories (ERA, WHIP); Brandon Pfaadt wins 1 (K); 1 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Brandon Pfaadt
93.2
Zack Kelly
96.1
Swinging-Strike %lg 11.0% · higher = better
Brandon Pfaadt
9.8%
Zack Kelly
9.2%
Strikeout %lg 22.0% · higher = better
Brandon Pfaadt
15.6%
Zack Kelly
19.7%
Chase %lg 28.5% · higher = better
Brandon Pfaadt
30.8%
Zack Kelly
28.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Brandon Pfaadt
36.5%
Zack Kelly
38.8%
Barrel % Allowedlg 8.0% · lower = better
Brandon Pfaadt
8.2%
Zack Kelly
8.2%
xwOBA Allowedlg .315 · lower = better
Brandon Pfaadt
.303
Zack Kelly
.368
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
2.406.50
lg xERA 4.10
now 5.59
3.78
Zack Kelly
2.406.50
lg xERA 4.10
now 3.31
3.70
WHIPlower is better
Brandon Pfaadt
1.171.48
now 1.41
1.32
Zack Kelly
1.171.48
now 1.29
1.24

Volume · rest of season
Strikeoutshigher is better
Brandon Pfaadt
4036.80
now 30
25
Zack Kelly
4036.80
now 14
13
Winshigher is better
Brandon Pfaadt
.000.480
now 0
00
Zack Kelly
.000.480
now 0
00

SV — not applicable. Both pitch out of the rotation.

If you already own them — trade angle
Hold · leans buyBrandon Pfaadt — hold.conf 0.60
Hold · wait & seeZack Kelly — hold.conf 0.50
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