MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Matthew Liberatore
Matthew Liberatore
STL · P
Change to
Portrait of Robbie Ray
Robbie Ray
SD · 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

Matthew Liberatore wins 1 (WHIP); Robbie Ray wins 1 (ERA); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Matthew Liberatore
94.3
Robbie Ray
93.1
Swinging-Strike %lg 11.0% · higher = better
Matthew Liberatore
11.0%
Robbie Ray
11.4%
Strikeout %lg 22.0% · higher = better
Matthew Liberatore
22.8%
Robbie Ray
19.9%
Chase %lg 28.5% · higher = better
Matthew Liberatore
28.6%
Robbie Ray
28.2%
Hard-Hit % Allowedlg 40.0% · lower = better
Matthew Liberatore
42.4%
Robbie Ray
37.4%
Barrel % Allowedlg 8.0% · lower = better
Matthew Liberatore
9.3%
Robbie Ray
8.0%
xwOBA Allowedlg .315 · lower = better
Matthew Liberatore
.341
Robbie Ray
.335
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
Matthew Liberatore
4.134.92
lg xERA 4.10
now 4.35
4.70
Robbie Ray
4.134.92
lg xERA 4.10
now 4.45
4.57
WHIPlower is better
Matthew Liberatore
1.321.57
now 1.50
1.39
Robbie Ray
1.321.57
now 1.40
1.41

Volume · rest of season
Strikeoutshigher is better
Matthew Liberatore
4082.60
now 57
0
Robbie Ray
4082.60
now 59
0
Winshigher is better
Matthew Liberatore
.0004.20
now 3
0–0
Robbie Ray
.0004.20
now 3
0–0

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

If you already own them — trade angle
SellMatthew Liberatore — sell.conf 0.83
Sell HighRobbie Ray — sell high. His value is peaking; good time to trade him.conf 0.95
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