MLB Daily DeltaWeek 13 · June 19, 2026
Portrait of Grant Wolfram
Grant Wolfram
BAL · P
Change to
Portrait of Mason Montgomery
Mason Montgomery
PIT · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 11, 2 even. Take whoever fills a bigger need.

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

Grant Wolfram wins 1 (W); Mason Montgomery wins 1 (K); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Grant Wolfram
94.9
Mason Montgomery
98.1
Swinging-Strike %lg 11.0% · higher = better
Grant Wolfram
13.1%
Mason Montgomery
14.6%
Strikeout %lg 22.0% · higher = better
Grant Wolfram
26.7%
Mason Montgomery
29.5%
Chase %lg 28.5% · higher = better
Grant Wolfram
32.9%
Mason Montgomery
30.7%
Hard-Hit % Allowedlg 40.0% · lower = better
Grant Wolfram
43.3%
Mason Montgomery
43.7%
Barrel % Allowedlg 8.0% · lower = better
Grant Wolfram
5.0%
Mason Montgomery
8.5%
xwOBA Allowedlg .315 · lower = better
Grant Wolfram
.297
Mason Montgomery
.310
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 Wolfram
3.484.24
lg xERA 4.10
now 4.02
3.70
Mason Montgomery
3.484.24
lg xERA 4.10
now 3.91
3.71
WHIPlower is better
Grant Wolfram
1.121.65
now 1.53
1.24
Mason Montgomery
1.121.65
now 1.26
1.24

Volume · rest of season
Strikeoutshigher is better
Grant Wolfram
4054.60
now 21
37
Mason Montgomery
4054.60
now 30
45
Winshigher is better
Grant Wolfram
.2003.80
now 1
13
Mason Montgomery
.2003.80
now 1
12

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

If you already own them — trade angle
Buy LowGrant Wolfram — buy low. The dip is a window to acquire.conf 0.79
Hold · wait & seeMason Montgomery — hold.conf 0.50
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