MLB Daily DeltaWeek 17 · July 19, 2026
Portrait of Jason Adam
Jason Adam
SD · 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

Jason Adam 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
Jason Adam
93.4
Mark Leiter Jr.
92.2
Swinging-Strike %lg 11.0% · higher = better
Jason Adam
15.3%
Mark Leiter Jr.
14.0%
Strikeout %lg 22.0% · higher = better
Jason Adam
16.4%
Mark Leiter Jr.
26.1%
Chase %lg 28.5% · higher = better
Jason Adam
35.6%
Mark Leiter Jr.
35.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Jason Adam
36.3%
Mark Leiter Jr.
31.5%
Barrel % Allowedlg 8.0% · lower = better
Jason Adam
6.9%
Mark Leiter Jr.
3.4%
xwOBA Allowedlg .315 · lower = better
Jason Adam
.288
Mark Leiter Jr.
.314
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
Jason Adam
27.30
lg xERA 4.10
now 0.90
3.70
Mark Leiter Jr.
27.30
lg xERA 4.10
now 5.47
3.72
WHIPlower is better
Jason Adam
.9001.64
now 1.00
1.24
Mark Leiter Jr.
.9001.64
now 1.46
1.24

Volume · rest of season
Strikeoutshigher is better
Jason Adam
4030.60
now 11
15
Mark Leiter Jr.
4030.60
now 25
21
Winshigher is better
Jason Adam
.0004.20
now 2
13
Mark Leiter Jr.
.0004.20
now 0
00
Saveshigher is better
Jason Adam
.0005.60
now 1
02
Mark Leiter Jr.
.0005.60
now 4
24
If you already own them — trade angle
Sell HighJason Adam — sell high. His value is peaking; good time to trade him.conf 0.91
Hold · wait & seeMark Leiter Jr. — hold.conf 0.50
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