MLB Daily DeltaWeek 27 · September 27, 2026
Carson Seymour
SF · 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

Carson Seymour 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
Carson Seymour
97.2
Kenley Jansen
93.9
Swinging-Strike %lg 11.0% · higher = better
Carson Seymour
10.6%
Kenley Jansen
13.0%
Strikeout %lg 22.0% · higher = better
Carson Seymour
15.7%
Kenley Jansen
28.3%
Chase %lg 28.5% · higher = better
Carson Seymour
25.5%
Kenley Jansen
30.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Carson Seymour
39.6%
Kenley Jansen
38.1%
Barrel % Allowedlg 8.0% · lower = better
Carson Seymour
9.4%
Kenley Jansen
9.5%
xwOBA Allowedlg .315 · lower = better
Carson Seymour
.385
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
Carson Seymour
28.25
lg xERA 4.10
now 9.00
3.70
Kenley Jansen
28.25
lg xERA 4.10
now 4.80
3.70
WHIPlower is better
Carson Seymour
.9002.55
now 2.33
1.24
Kenley Jansen
.9002.55
now 1.20
1.24

Volume · rest of season
Strikeoutshigher is better
Carson Seymour
4026.60
now 1
0
Kenley Jansen
4026.60
now 19
0
Winshigher is better
Carson Seymour
.0001.48
now 0
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 & seeCarson Seymour — 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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