MLB Daily DeltaWeek 20 · August 7, 2026
Portrait of John King
John King
MIA · P
Change to
Portrait of Mark Leiter Jr.
Mark Leiter Jr.
ATH · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 22, 1 even. Take whoever fills a bigger need.

Head-to-head
K
ERA
WHIP
W
SV

John King wins 2 (ERA, W); Mark Leiter Jr. wins 2 (K, SV); 1 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
John King
90.5
Mark Leiter Jr.
92.2
Swinging-Strike %lg 11.0% · higher = better
John King
10.7%
Mark Leiter Jr.
14.0%
Strikeout %lg 22.0% · higher = better
John King
18.9%
Mark Leiter Jr.
26.4%
Chase %lg 28.5% · higher = better
John King
34.0%
Mark Leiter Jr.
33.8%
Hard-Hit % Allowedlg 40.0% · lower = better
John King
37.2%
Mark Leiter Jr.
31.9%
Barrel % Allowedlg 8.0% · lower = better
John King
8.3%
Mark Leiter Jr.
3.3%
xwOBA Allowedlg .315 · lower = better
John King
.294
Mark Leiter Jr.
.316
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
26.65
lg xERA 4.10
now 2.52
3.69
Mark Leiter Jr.
26.65
lg xERA 4.10
now 5.47
3.72
WHIPlower is better
John King
.9001.76
now 0.72
1.24
Mark Leiter Jr.
.9001.76
now 1.46
1.24

Volume · rest of season
Strikeoutshigher is better
John King
4030.60
now 20
11
Mark Leiter Jr.
4030.60
now 25
15
Winshigher is better
John King
.0001.48
now 1
01
Mark Leiter Jr.
.0001.48
now 0
00
Saveshigher is better
John King
.0005.60
now 1
01
Mark Leiter Jr.
.0005.60
now 4
23
If you already own them — trade angle
Sell HighJohn King — sell high. His value is peaking; good time to trade him.conf 0.94
Hold · wait & seeMark Leiter Jr. — hold.conf 0.50
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