MLB Daily DeltaWeek 19 · July 31, 2026
Portrait of Grant Wolfram
Grant Wolfram
BAL · P
Change to
Portrait of John King
John King
MIA · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 11, 3 even. Take whoever fills a bigger need.

Head-to-head
K
ERA
WHIP
W
SV

Grant Wolfram wins 1 (K); John King wins 1 (SV); 3 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Grant Wolfram
95.4
John King
90.5
Swinging-Strike %lg 11.0% · higher = better
Grant Wolfram
11.8%
John King
10.9%
Strikeout %lg 22.0% · higher = better
Grant Wolfram
25.0%
John King
19.3%
Chase %lg 28.5% · higher = better
Grant Wolfram
31.0%
John King
33.4%
Hard-Hit % Allowedlg 40.0% · lower = better
Grant Wolfram
36.8%
John King
37.7%
Barrel % Allowedlg 8.0% · lower = better
Grant Wolfram
5.3%
John King
7.9%
xwOBA Allowedlg .315 · lower = better
Grant Wolfram
.280
John King
.290
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
24.62
lg xERA 4.10
now 4.02
3.70
John King
24.62
lg xERA 4.10
now 2.52
3.69
WHIPlower is better
Grant Wolfram
.9001.85
now 1.53
1.24
John King
.9001.85
now 0.72
1.24

Volume · rest of season
Strikeoutshigher is better
Grant Wolfram
4026.60
now 21
20
John King
4026.60
now 20
12
Winshigher is better
Grant Wolfram
.0001.48
now 1
11
John King
.0001.48
now 1
01
Saveshigher is better
Grant Wolfram
.0002.40
now 0
0
John King
.0002.40
now 1
01
If you already own them — trade angle
Buy LowGrant Wolfram — buy low. The dip is a window to acquire.conf 0.85
Sell HighJohn King — sell high. His value is peaking; good time to trade him.conf 0.93
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