MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Janson Junk
Janson Junk
MIA · P
Change to
Portrait of Roki Sasaki
Roki Sasaki
LAD · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 1–1, 2 even. Take whoever fills a bigger need.

Head-to-head
K
◀
ERA
WHIP
▶
W
SV n/a

Janson Junk wins 1 (ERA); Roki Sasaki wins 1 (WHIP); 2 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Janson Junk
94.1
Roki Sasaki
97.8
Swinging-Strike %lg 11.0% · higher = better
Janson Junk
7.4%
Roki Sasaki
14.9%
Strikeout %lg 22.0% · higher = better
Janson Junk
16.6%
Roki Sasaki
23.3%
Chase %lg 28.5% · higher = better
Janson Junk
28.4%
Roki Sasaki
33.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Janson Junk
38.5%
Roki Sasaki
42.9%
Barrel % Allowedlg 8.0% · lower = better
Janson Junk
7.0%
Roki Sasaki
9.9%
xwOBA Allowedlg .315 · lower = better
Janson Junk
.317
Roki Sasaki
.320
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
Janson Junk
3.965.04
lg xERA 4.10
now 4.80
4.20
Roki Sasaki
3.965.04
lg xERA 4.10
now 4.59
4.26
WHIPlower is better
Janson Junk
1.231.42
now 1.30
1.35
Roki Sasaki
1.231.42
now 1.35
1.33

Volume · rest of season
Strikeoutshigher is better
Janson Junk
4070
now 43
0
Roki Sasaki
4070
now 50
0
Winshigher is better
Janson Junk
.0004.20
now 3
0–0
Roki Sasaki
.0004.20
now 3
0–0

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

If you already own them — trade angle
Hold · leans sellJanson Junk — hold.conf 0.60
Hold · leans sellRoki Sasaki — hold.conf 0.60
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