MLB Daily DeltaWeek 17 · July 19, 2026
Portrait of Martín Pérez
Martín Pérez
ATL · P
Change to
Portrait of Mike Burrows
Mike Burrows
HOU · P
Change to
Who's more valuable, rest of season

Martín Pérez.

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

Martín Pérez wins 2 categories (ERA, WHIP); Mike Burrows 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
Martín Pérez
90.0
Mike Burrows
95.0
Swinging-Strike %lg 11.0% · higher = better
Martín Pérez
9.3%
Mike Burrows
10.7%
Strikeout %lg 22.0% · higher = better
Martín Pérez
18.6%
Mike Burrows
17.7%
Chase %lg 28.5% · higher = better
Martín Pérez
26.2%
Mike Burrows
32.3%
Hard-Hit % Allowedlg 40.0% · lower = better
Martín Pérez
36.3%
Mike Burrows
38.8%
Barrel % Allowedlg 8.0% · lower = better
Martín Pérez
6.8%
Mike Burrows
8.4%
xwOBA Allowedlg .315 · lower = better
Martín Pérez
.330
Mike Burrows
.336
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
Martín Pérez
26.44
lg xERA 4.10
now 2.79
4.41
Mike Burrows
26.44
lg xERA 4.10
now 5.40
4.54
WHIPlower is better
Martín Pérez
.9001.61
now 1.06
1.37
Mike Burrows
.9001.61
now 1.45
1.41

Volume · rest of season
Strikeoutshigher is better
Martín Pérez
4059.60
now 42
40
Mike Burrows
4059.60
now 54
53
Winshigher is better
Martín Pérez
1.204.80
now 3
24
Mike Burrows
1.204.80
now 3
24

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

If you already own them — trade angle
Sell HighMartín Pérez — sell high. His value is peaking; good time to trade him.conf 0.95
Hold · leans sellMike Burrows — hold.conf 0.60
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