MLB Daily DeltaWeek 13 · June 24, 2026
Portrait of Mitch Keller
Mitch Keller
PIT · P
Change to
Portrait of Ryne Nelson
Ryne Nelson
AZ · 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

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

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Mitch Keller
93.4
Ryne Nelson
96.3
Swinging-Strike %lg 11.0% · higher = better
Mitch Keller
9.8%
Ryne Nelson
11.4%
Strikeout %lg 22.0% · higher = better
Mitch Keller
18.4%
Ryne Nelson
17.5%
Chase %lg 28.5% · higher = better
Mitch Keller
28.7%
Ryne Nelson
34.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Mitch Keller
41.0%
Ryne Nelson
43.4%
Barrel % Allowedlg 8.0% · lower = better
Mitch Keller
6.4%
Ryne Nelson
10.2%
xwOBA Allowedlg .315 · lower = better
Mitch Keller
.345
Ryne Nelson
.349
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
Mitch Keller
4.135.04
lg xERA 4.10
now 4.35
4.68
Ryne Nelson
4.135.04
lg xERA 4.10
now 4.82
4.77
WHIPlower is better
Mitch Keller
1.081.48
now 1.17
1.39
Ryne Nelson
1.081.48
now 1.19
1.28

Volume · rest of season
Strikeoutshigher is better
Mitch Keller
44.2074.80
now 51
67
Ryne Nelson
44.2074.80
now 52
68
Winshigher is better
Mitch Keller
.00011.80
now 5
49
Ryne Nelson
.00011.80
now 2
24

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

If you already own them — trade angle
SellMitch Keller — sell.conf 0.82
SellRyne Nelson — sell.conf 0.86
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