MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Blake Treinen
Blake Treinen
LAD · P
Change to
Kenley Jansen
DET · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 0–0, 4 even. Take whoever fills a bigger need.

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

Blake Treinen wins 0 (none); Kenley Jansen wins 0 (none); 4 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Blake Treinen
94.8
Kenley Jansen
93.9
Swinging-Strike %lg 11.0% · higher = better
Blake Treinen
11.9%
Kenley Jansen
13.0%
Strikeout %lg 22.0% · higher = better
Blake Treinen
23.8%
Kenley Jansen
28.3%
Chase %lg 28.5% · higher = better
Blake Treinen
34.6%
Kenley Jansen
30.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Blake Treinen
41.2%
Kenley Jansen
38.1%
Barrel % Allowedlg 8.0% · lower = better
Blake Treinen
10.6%
Kenley Jansen
9.5%
xwOBA Allowedlg .315 · lower = better
Blake Treinen
.343
Kenley Jansen
.293
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
Blake Treinen
2.365.50
lg xERA 4.10
now 3.06
3.70
Kenley Jansen
2.365.50
lg xERA 4.10
now 4.80
3.70
WHIPlower is better
Blake Treinen
1.131.32
now 1.25
1.24
Kenley Jansen
1.131.32
now 1.20
1.24

Volume · rest of season
Strikeoutshigher is better
Blake Treinen
4026.60
now 18
0
Kenley Jansen
4026.60
now 19
0
Winshigher is better
Blake Treinen
.0001.48
now 1
0–0
Kenley Jansen
.0001.48
now 1
0–0

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

If you already own them — trade angle
Hold · wait & seeBlake Treinen — hold.conf 0.50
Sell HighKenley Jansen — sell high. His value is peaking; good time to trade him.conf 0.71
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