MLB Daily DeltaWeek 20 · August 6, 2026
Portrait of Matthew Liberatore
Matthew Liberatore
STL · P
Change to
Portrait of Mitch Keller
Mitch Keller
PIT · P
Change to
Who's more valuable, rest of season

Matthew Liberatore.

He projects to help you in more roto categories the rest of the way — strikeouts and ERA. Mitch Keller’s box score looks better right now, but the luck-stripped projection flips it.

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

Matthew Liberatore wins 2 categories (K, ERA); Mitch Keller wins 1 (W); 1 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Matthew Liberatore
94.4
Mitch Keller
93.3
Swinging-Strike %lg 11.0% · higher = better
Matthew Liberatore
11.0%
Mitch Keller
9.7%
Strikeout %lg 22.0% · higher = better
Matthew Liberatore
22.5%
Mitch Keller
17.7%
Chase %lg 28.5% · higher = better
Matthew Liberatore
29.8%
Mitch Keller
29.4%
Hard-Hit % Allowedlg 40.0% · lower = better
Matthew Liberatore
42.3%
Mitch Keller
42.3%
Barrel % Allowedlg 8.0% · lower = better
Matthew Liberatore
8.6%
Mitch Keller
7.4%
xwOBA Allowedlg .315 · lower = better
Matthew Liberatore
.338
Mitch Keller
.355
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
4.105.23
lg xERA 4.10
now 4.35
4.60
Mitch Keller
4.105.23
lg xERA 4.10
now 4.35
4.98
WHIPlower is better
Matthew Liberatore
1.041.63
now 1.50
1.38
Mitch Keller
1.041.63
now 1.17
1.38

Volume · rest of season
Strikeoutshigher is better
Matthew Liberatore
4066.20
now 57
36
Mitch Keller
4066.20
now 51
34
Winshigher is better
Matthew Liberatore
.0006.60
now 3
13
Mitch Keller
.0006.60
now 5
24

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

If you already own them — trade angle
SellMatthew Liberatore — sell.conf 0.78
SellMitch Keller — sell.conf 0.90
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