MLB Daily DeltaWeek 17 · July 21, 2026
Portrait of Jacob Lopez
Jacob Lopez
ATH · P
Change to
Portrait of Steven Matz
Steven Matz
TB · P
Change to
Who's more valuable, rest of season

Steven Matz.

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

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

Steven Matz wins 3 categories (K, WHIP, W); Jacob Lopez wins 1 (ERA); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Jacob Lopez
90.5
Steven Matz
93.3
Swinging-Strike %lg 11.0% · higher = better
Jacob Lopez
9.3%
Steven Matz
10.3%
Strikeout %lg 22.0% · higher = better
Jacob Lopez
17.4%
Steven Matz
17.8%
Chase %lg 28.5% · higher = better
Jacob Lopez
25.4%
Steven Matz
27.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Jacob Lopez
31.4%
Steven Matz
36.1%
Barrel % Allowedlg 8.0% · lower = better
Jacob Lopez
4.6%
Steven Matz
13.0%
xwOBA Allowedlg .315 · lower = better
Jacob Lopez
.305
Steven Matz
.366
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
Jacob Lopez
2.737.90
lg xERA 4.10
now 6.75
3.88
Steven Matz
2.737.90
lg xERA 4.10
now 4.67
5.24
WHIPlower is better
Jacob Lopez
12.08
now 1.84
1.54
Steven Matz
12.08
now 1.24
1.37

Volume · rest of season
Strikeoutshigher is better
Jacob Lopez
4049.60
now 38
42
Steven Matz
4049.60
now 35
44
Winshigher is better
Jacob Lopez
1.807.20
now 4
36
Steven Matz
1.807.20
now 4
36

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

If you already own them — trade angle
Hold · leans buyJacob Lopez — hold.conf 0.60
SellSteven Matz — sell.conf 0.90
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