MLB Daily DeltaWeek 27 · September 27, 2026
Matt Waldron
WSH · P
Change to
Robert Stock
NYM · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 0–0, 4 even. Take whoever fills a bigger need.

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

Matt Waldron wins 0 (none); Robert Stock wins 0 (none); 4 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Matt Waldron
92.0
Robert Stock
95.8
Swinging-Strike %lg 11.0% · higher = better
Matt Waldron
8.8%
Robert Stock
11.8%
Strikeout %lg 22.0% · higher = better
Matt Waldron
17.0%
Robert Stock
19.7%
Chase %lg 28.5% · higher = better
Matt Waldron
31.5%
Robert Stock
28.4%
Hard-Hit % Allowedlg 40.0% · lower = better
Matt Waldron
36.5%
Robert Stock
36.4%
Barrel % Allowedlg 8.0% · lower = better
Matt Waldron
5.4%
Robert Stock
8.1%
xwOBA Allowedlg .315 · lower = better
Matt Waldron
.291
Robert Stock
.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
Matt Waldron
28.25
lg xERA 4.10
now 8.49
4.08
Robert Stock
28.25
lg xERA 4.10
now 1.80
4.10
WHIPlower is better
Matt Waldron
.9002.15
now 1.71
1.30
Robert Stock
.9002.15
now 0.60
1.30

Volume · rest of season
Strikeoutshigher is better
Matt Waldron
4030.80
now 22
0
Robert Stock
4030.80
now 4
0
Winshigher is better
Matt Waldron
.0001.48
now 1
0–0
Robert Stock
.0001.48
now 0
0–0

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

If you already own them — trade angle
Buy LowMatt Waldron — buy low. The dip is a window to acquire.conf 0.90
Hold · wait & seeRobert Stock — hold.conf 0.55
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