MLB Daily DeltaWeek 15 · July 4, 2026
Portrait of Grant Holmes
Grant Holmes
ATL · P
Change to
Portrait of Mitch Keller
Mitch Keller
PIT · 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

Grant Holmes wins 2 (K, ERA); Mitch Keller wins 2 (WHIP, W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Grant Holmes
94.2
Mitch Keller
93.4
Swinging-Strike %lg 11.0% · higher = better
Grant Holmes
13.3%
Mitch Keller
10.0%
Strikeout %lg 22.0% · higher = better
Grant Holmes
20.7%
Mitch Keller
18.2%
Chase %lg 28.5% · higher = better
Grant Holmes
32.2%
Mitch Keller
29.2%
Hard-Hit % Allowedlg 40.0% · lower = better
Grant Holmes
44.7%
Mitch Keller
41.5%
Barrel % Allowedlg 8.0% · lower = better
Grant Holmes
9.3%
Mitch Keller
6.2%
xwOBA Allowedlg .315 · lower = better
Grant Holmes
.336
Mitch Keller
.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
Grant Holmes
3.664.97
lg xERA 4.10
now 3.95
4.53
Mitch Keller
3.664.97
lg xERA 4.10
now 4.35
4.68
WHIPlower is better
Grant Holmes
1.081.49
now 1.33
1.40
Mitch Keller
1.081.49
now 1.17
1.37

Volume · rest of season
Strikeoutshigher is better
Grant Holmes
44.6073.40
now 53
67
Mitch Keller
44.6073.40
now 51
58
Winshigher is better
Grant Holmes
.0009
now 3
25
Mitch Keller
.0009
now 5
37

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

If you already own them — trade angle
Sell HighGrant Holmes — sell high. His value is peaking; good time to trade him.conf 0.95
SellMitch Keller — sell.conf 0.82
Tweet