MLB Daily DeltaWeek 17 · July 19, 2026
Portrait of José Fermin
José Fermin
LAA · P
Change to
Portrait of Mark Leiter Jr.
Mark Leiter Jr.
ATH · P
Change to
Who's more valuable, rest of season

José Fermin.

He projects to help you in more roto categories the rest of the way — strikeouts, ERA, and wins. Mark Leiter Jr.’s box score looks better right now, but the luck-stripped projection flips it.

Head-to-head
K
ERA
WHIP
W
SV

José Fermin wins 3 categories (K, ERA, W); Mark Leiter Jr. wins 1 (SV); 1 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
José Fermin
96.3
Mark Leiter Jr.
92.2
Swinging-Strike %lg 11.0% · higher = better
José Fermin
14.9%
Mark Leiter Jr.
14.0%
Strikeout %lg 22.0% · higher = better
José Fermin
25.2%
Mark Leiter Jr.
26.1%
Chase %lg 28.5% · higher = better
José Fermin
32.8%
Mark Leiter Jr.
35.0%
Hard-Hit % Allowedlg 40.0% · lower = better
José Fermin
45.1%
Mark Leiter Jr.
31.5%
Barrel % Allowedlg 8.0% · lower = better
José Fermin
7.0%
Mark Leiter Jr.
3.4%
xwOBA Allowedlg .315 · lower = better
José Fermin
.316
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
José Fermin
2.996.18
lg xERA 4.10
now 5.40
3.70
Mark Leiter Jr.
2.996.18
lg xERA 4.10
now 5.47
3.72
WHIPlower is better
José Fermin
1.071.84
now 1.67
1.24
Mark Leiter Jr.
1.071.84
now 1.46
1.24

Volume · rest of season
Strikeoutshigher is better
José Fermin
4030.60
now 18
22
Mark Leiter Jr.
4030.60
now 25
21
Winshigher is better
José Fermin
.0005.60
now 2
14
Mark Leiter Jr.
.0005.60
now 0
00
Saveshigher is better
José Fermin
.0005.60
now 0
0
Mark Leiter Jr.
.0005.60
now 4
24
If you already own them — trade angle
Sell HighJosé Fermin — sell high. His value is peaking; good time to trade him.conf 0.93
Hold · wait & seeMark Leiter Jr. — hold.conf 0.50
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