MLB Daily DeltaWeek 18 · July 29, 2026
Portrait of Janson Junk
Janson Junk
MIA · P
Change to
Portrait of Mitch Keller
Mitch Keller
PIT · P
Change to
Who's more valuable, rest of season

Too close to call.

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

Head-to-head
K
ERA
WHIP
W
SV n/a

Janson Junk wins 2 (ERA, WHIP); Mitch Keller wins 2 (K, W); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Janson Junk
94.3
Mitch Keller
93.4
Swinging-Strike %lg 11.0% · higher = better
Janson Junk
8.4%
Mitch Keller
9.8%
Strikeout %lg 22.0% · higher = better
Janson Junk
18.0%
Mitch Keller
17.9%
Chase %lg 28.5% · higher = better
Janson Junk
28.0%
Mitch Keller
30.0%
Hard-Hit % Allowedlg 40.0% · lower = better
Janson Junk
41.4%
Mitch Keller
42.1%
Barrel % Allowedlg 8.0% · lower = better
Janson Junk
6.8%
Mitch Keller
6.8%
xwOBA Allowedlg .315 · lower = better
Janson Junk
.310
Mitch Keller
.345
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
Janson Junk
3.745.10
lg xERA 4.10
now 4.80
4.04
Mitch Keller
3.745.10
lg xERA 4.10
now 4.35
4.77
WHIPlower is better
Janson Junk
1.091.44
now 1.30
1.33
Mitch Keller
1.091.44
now 1.17
1.36

Volume · rest of season
Strikeoutshigher is better
Janson Junk
4057.80
now 43
34
Mitch Keller
4057.80
now 51
39
Winshigher is better
Janson Junk
.8006.20
now 3
23
Mitch Keller
.8006.20
now 5
25

SV — not applicable. Both pitch out of the rotation.

If you already own them — trade angle
Hold · steadyJanson Junk — hold.conf 0.60
SellMitch Keller — sell.conf 0.86
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