MLB Daily DeltaWeek 14 · July 1, 2026
Portrait of Brandon Pfaadt
Brandon Pfaadt
AZ · P
Change to
Isaac Mattson
PIT · P
Change to
Who's more valuable, rest of season

Isaac Mattson.

He projects to help you in more roto categories the rest of the way — ERA and WHIP. Brandon Pfaadt’s box score looks better right now, but the luck-stripped projection flips it.

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

Isaac Mattson 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
93.5
Isaac Mattson
93.9
Swinging-Strike %lg 11.0% · higher = better
Brandon Pfaadt
11.6%
Isaac Mattson
10.3%
Strikeout %lg 22.0% · higher = better
Brandon Pfaadt
18.1%
Isaac Mattson
20.8%
Chase %lg 28.5% · higher = better
Brandon Pfaadt
30.5%
Isaac Mattson
26.6%
Hard-Hit % Allowedlg 40.0% · lower = better
Brandon Pfaadt
40.8%
Isaac Mattson
49.3%
Barrel % Allowedlg 8.0% · lower = better
Brandon Pfaadt
11.7%
Isaac Mattson
12.7%
xwOBA Allowedlg .315 · lower = better
Brandon Pfaadt
.352
Isaac Mattson
.375
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
2.946.35
lg xERA 4.10
now 5.59
3.94
Isaac Mattson
2.946.35
lg xERA 4.10
now 4.12
3.70
WHIPlower is better
Brandon Pfaadt
1.151.56
now 1.41
1.28
Isaac Mattson
1.151.56
now 1.47
1.24

Volume · rest of season
Strikeoutshigher is better
Brandon Pfaadt
4051.40
now 30
41
Isaac Mattson
4051.40
now 15
20
Winshigher is better
Brandon Pfaadt
.000.480
now 0
00
Isaac Mattson
.000.480
now 0
00

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

If you already own them — trade angle
Hold · wait & seeBrandon Pfaadt — hold.conf 0.50
Sell HighIsaac Mattson — sell high. His value is peaking; good time to trade him.conf 0.95
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