MLB Daily DeltaWeek 25 · September 10, 2026
Portrait of Ryne Nelson
Ryne Nelson
AZ · P
Change to
Portrait of Tatsuya Imai
Tatsuya Imai
HOU · 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

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

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Ryne Nelson
96.3
Tatsuya Imai
94.8
Swinging-Strike %lg 11.0% · higher = better
Ryne Nelson
11.4%
Tatsuya Imai
14.1%
Strikeout %lg 22.0% · higher = better
Ryne Nelson
17.5%
Tatsuya Imai
27.9%
Chase %lg 28.5% · higher = better
Ryne Nelson
34.1%
Tatsuya Imai
27.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Ryne Nelson
43.4%
Tatsuya Imai
45.5%
Barrel % Allowedlg 8.0% · lower = better
Ryne Nelson
10.2%
Tatsuya Imai
9.7%
xwOBA Allowedlg .315 · lower = better
Ryne Nelson
.349
Tatsuya Imai
.335
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
Ryne Nelson
4.155.91
lg xERA 4.10
now 4.82
4.85
Tatsuya Imai
4.155.91
lg xERA 4.10
now 5.52
4.54
WHIPlower is better
Ryne Nelson
1.091.55
now 1.19
1.28
Tatsuya Imai
1.091.55
now 1.36
1.45

Volume · rest of season
Strikeoutshigher is better
Ryne Nelson
4069.20
now 52
11
Tatsuya Imai
4069.20
now 28
9
Winshigher is better
Ryne Nelson
.0002.80
now 2
01
Tatsuya Imai
.0002.80
now 2
01

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

If you already own them — trade angle
SellRyne Nelson — sell.conf 0.90
SellTatsuya Imai — sell.conf 0.75
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