MLB Daily DeltaWeek 25 · September 10, 2026
Portrait of Merrill Kelly
Merrill Kelly
AZ · P
Change to
Patrick Sandoval
BOS · 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

Merrill Kelly wins 2 (WHIP, W); Patrick Sandoval wins 2 (K, ERA); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Merrill Kelly
92.1
Patrick Sandoval
93.6
Swinging-Strike %lg 11.0% · higher = better
Merrill Kelly
10.6%
Patrick Sandoval
11.9%
Strikeout %lg 22.0% · higher = better
Merrill Kelly
15.4%
Patrick Sandoval
22.5%
Chase %lg 28.5% · higher = better
Merrill Kelly
34.8%
Patrick Sandoval
27.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Merrill Kelly
42.2%
Patrick Sandoval
35.7%
Barrel % Allowedlg 8.0% · lower = better
Merrill Kelly
11.8%
Patrick Sandoval
6.5%
xwOBA Allowedlg .315 · lower = better
Merrill Kelly
.387
Patrick Sandoval
.349
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
Merrill Kelly
27.29
lg xERA 4.10
now 5.06
5.80
Patrick Sandoval
27.29
lg xERA 4.10
now 2.08
4.85
WHIPlower is better
Merrill Kelly
1.311.53
now 1.46
1.44
Patrick Sandoval
1.311.53
now 1.38
1.46

Volume · rest of season
Strikeoutshigher is better
Merrill Kelly
4044.20
now 33
9
Patrick Sandoval
4044.20
now 5
11
Winshigher is better
Merrill Kelly
.0007
now 5
12
Patrick Sandoval
.0007
now 0
00

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

If you already own them — trade angle
SellMerrill Kelly — sell.conf 0.90
SellPatrick Sandoval — sell.conf 0.90
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