MLB Daily DeltaWeek 19 · August 5, 2026
Portrait of John King
John King
MIA · 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, 3 even. Take whoever fills a bigger need.

Head-to-head
K
ERA
WHIP
W
SV

John King wins 1 (SV); Mason Montgomery wins 1 (K); 3 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
John King
90.5
Mason Montgomery
98.3
Swinging-Strike %lg 11.0% · higher = better
John King
10.8%
Mason Montgomery
15.4%
Strikeout %lg 22.0% · higher = better
John King
19.5%
Mason Montgomery
37.1%
Chase %lg 28.5% · higher = better
John King
34.0%
Mason Montgomery
31.7%
Hard-Hit % Allowedlg 40.0% · lower = better
John King
37.1%
Mason Montgomery
41.6%
Barrel % Allowedlg 8.0% · lower = better
John King
7.8%
Mason Montgomery
8.9%
xwOBA Allowedlg .315 · lower = better
John King
.289
Mason Montgomery
.262
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
John King
24.47
lg xERA 4.10
now 2.52
3.69
Mason Montgomery
24.47
lg xERA 4.10
now 3.91
3.68
WHIPlower is better
John King
.9001.48
now 0.72
1.24
Mason Montgomery
.9001.48
now 1.26
1.24

Volume · rest of season
Strikeoutshigher is better
John King
4037.60
now 20
11
Mason Montgomery
4037.60
now 30
18
Winshigher is better
John King
.0001.48
now 1
01
Mason Montgomery
.0001.48
now 1
01
Saveshigher is better
John King
.0002.40
now 1
01
Mason Montgomery
.0002.40
now 0
0
If you already own them — trade angle
Sell HighJohn King — sell high. His value is peaking; good time to trade him.conf 0.95
Hold · wait & seeMason Montgomery — hold.conf 0.50
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