MLB Daily DeltaWeek 13 · June 22, 2026
Portrait of Mark Leiter Jr.
Mark Leiter Jr.
ATH · P
Change to
Ryan Walker
SF · P
Change to
Who's more valuable, rest of season

Ryan Walker.

He projects to help you in more roto categories the rest of the way — ERA. Mark Leiter Jr.’s box score looks better right now, but it’s built on luck that won’t hold.

Head-to-head
K
ERA
WHIP
W
SV

Ryan Walker wins 1 categories (ERA); Mark Leiter Jr. wins 0 (none); 4 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Mark Leiter Jr.
92.3
Ryan Walker
94.9
Swinging-Strike %lg 11.0% · higher = better
Mark Leiter Jr.
12.9%
Ryan Walker
7.3%
Strikeout %lg 22.0% · higher = better
Mark Leiter Jr.
24.4%
Ryan Walker
19.5%
Chase %lg 28.5% · higher = better
Mark Leiter Jr.
34.5%
Ryan Walker
26.3%
Hard-Hit % Allowedlg 40.0% · lower = better
Mark Leiter Jr.
30.6%
Ryan Walker
29.3%
Barrel % Allowedlg 8.0% · lower = better
Mark Leiter Jr.
3.5%
Ryan Walker
5.2%
xwOBA Allowedlg .315 · lower = better
Mark Leiter Jr.
.318
Ryan Walker
.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
Mark Leiter Jr.
2.607.56
lg xERA 4.10
now 5.47
3.72
Ryan Walker
2.607.56
lg xERA 4.10
now 6.46
3.70
WHIPlower is better
Mark Leiter Jr.
.9802.15
now 1.46
1.24
Ryan Walker
.9802.15
now 1.89
1.24

Volume · rest of season
Strikeoutshigher is better
Mark Leiter Jr.
4040.60
now 25
33
Ryan Walker
4040.60
now 14
33
Winshigher is better
Mark Leiter Jr.
.000.480
now 0
00
Ryan Walker
.000.480
now 0
00
Saveshigher is better
Mark Leiter Jr.
1.408.60
now 4
47
Ryan Walker
1.408.60
now 3
47
If you already own them — trade angle
Buy LowMark Leiter Jr. — buy low. The dip is a window to acquire.conf 0.80
Buy LowRyan Walker — buy low. The dip is a window to acquire.conf 0.90
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