MLB Daily DeltaWeek 25 · September 10, 2026
Portrait of Grayson Rodriguez
Grayson Rodriguez
LAA · P
Change to
Quinn Mathews
STL · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 22. Take whoever fills a bigger need.

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

Grayson Rodriguez wins 2 (K, W); Quinn Mathews wins 2 (ERA, WHIP); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Grayson Rodriguez
96.2
Quinn Mathews
93.6
Swinging-Strike %lg 11.0% · higher = better
Grayson Rodriguez
11.6%
Quinn Mathews
11.7%
Strikeout %lg 22.0% · higher = better
Grayson Rodriguez
20.3%
Quinn Mathews
20.4%
Chase %lg 28.5% · higher = better
Grayson Rodriguez
27.1%
Quinn Mathews
26.9%
Hard-Hit % Allowedlg 40.0% · lower = better
Grayson Rodriguez
46.0%
Quinn Mathews
36.2%
Barrel % Allowedlg 8.0% · lower = better
Grayson Rodriguez
9.5%
Quinn Mathews
2.1%
xwOBA Allowedlg .315 · lower = better
Grayson Rodriguez
.360
Quinn Mathews
.291
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
Grayson Rodriguez
2.038.25
lg xERA 4.10
now 7.53
5.10
Quinn Mathews
2.038.25
lg xERA 4.10
now 3.60
4.10
WHIPlower is better
Grayson Rodriguez
1.102
now 1.67
1.43
Quinn Mathews
1.102
now 1.80
1.30

Volume · rest of season
Strikeoutshigher is better
Grayson Rodriguez
4019.60
now 14
11
Quinn Mathews
4019.60
now 3
6
Winshigher is better
Grayson Rodriguez
.0002.80
now 2
12
Quinn Mathews
.0002.80
now 0
00

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

If you already own them — trade angle
Hold · leans sellGrayson Rodriguez — hold.conf 0.60
Buy LowQuinn Mathews — buy low. The dip is a window to acquire.conf 0.78
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