MLB Daily DeltaWeek 15 · July 5, 2026
Sean Sullivan
COL · 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

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

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Sean Sullivan
87.9
Tatsuya Imai
94.9
Swinging-Strike %lg 11.0% · higher = better
Sean Sullivan
7.8%
Tatsuya Imai
13.8%
Strikeout %lg 22.0% · higher = better
Sean Sullivan
14.6%
Tatsuya Imai
27.9%
Chase %lg 28.5% · higher = better
Sean Sullivan
28.0%
Tatsuya Imai
26.6%
Hard-Hit % Allowedlg 40.0% · lower = better
Sean Sullivan
28.8%
Tatsuya Imai
46.3%
Barrel % Allowedlg 8.0% · lower = better
Sean Sullivan
6.8%
Tatsuya Imai
10.7%
xwOBA Allowedlg .315 · lower = better
Sean Sullivan
.280
Tatsuya Imai
.340
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
Sean Sullivan
27.73
lg xERA 4.10
now 0.00
4.10
Tatsuya Imai
27.73
lg xERA 4.10
now 5.52
4.61
WHIPlower is better
Sean Sullivan
.9001.73
now 0.67
1.30
Tatsuya Imai
.9001.73
now 1.36
1.43

Volume · rest of season
Strikeoutshigher is better
Sean Sullivan
4067.80
now 2
31
Tatsuya Imai
4067.80
now 28
49
Winshigher is better
Sean Sullivan
.0007
now 0
00
Tatsuya Imai
.0007
now 2
35

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

If you already own them — trade angle
Buy LowSean Sullivan — buy low. The dip is a window to acquire.conf 0.90
SellTatsuya Imai — sell.conf 0.79
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