MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Kyle Leahy
Kyle Leahy
STL · P
Change to
Portrait of Steven Matz
Steven Matz
TB · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 1–1, 2 even. Take whoever fills a bigger need.

Head-to-head
K
◀
ERA
WHIP
▶
W
SV n/a

Kyle Leahy wins 1 (ERA); Steven Matz wins 1 (WHIP); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Kyle Leahy
94.3
Steven Matz
93.6
Swinging-Strike %lg 11.0% · higher = better
Kyle Leahy
10.5%
Steven Matz
9.9%
Strikeout %lg 22.0% · higher = better
Kyle Leahy
22.1%
Steven Matz
17.7%
Chase %lg 28.5% · higher = better
Kyle Leahy
27.2%
Steven Matz
29.2%
Hard-Hit % Allowedlg 40.0% · lower = better
Kyle Leahy
47.0%
Steven Matz
35.3%
Barrel % Allowedlg 8.0% · lower = better
Kyle Leahy
9.8%
Steven Matz
10.7%
xwOBA Allowedlg .315 · lower = better
Kyle Leahy
.337
Steven Matz
.343
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
Kyle Leahy
4.034.96
lg xERA 4.10
now 4.25
4.61
Steven Matz
4.034.96
lg xERA 4.10
now 4.67
4.74
WHIPlower is better
Kyle Leahy
1.111.69
now 1.56
1.34
Steven Matz
1.111.69
now 1.24
1.32

Volume · rest of season
Strikeoutshigher is better
Kyle Leahy
4064.40
now 46
0
Steven Matz
4064.40
now 35
0
Winshigher is better
Kyle Leahy
.0007
now 5
0–0
Steven Matz
.0007
now 4
0–0

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

If you already own them — trade angle
SellKyle Leahy — sell.conf 0.78
SellSteven Matz — sell.conf 0.84
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