MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Janson Junk
Janson Junk
MIA · P
Change to
Matthew Boyd
CHC · 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); Matthew Boyd 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
Matthew Boyd
92.8
Swinging-Strike %lg 11.0% · higher = better
Janson Junk
7.4%
Matthew Boyd
11.0%
Strikeout %lg 22.0% · higher = better
Janson Junk
16.6%
Matthew Boyd
18.5%
Chase %lg 28.5% · higher = better
Janson Junk
28.4%
Matthew Boyd
32.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Janson Junk
38.5%
Matthew Boyd
37.6%
Barrel % Allowedlg 8.0% · lower = better
Janson Junk
7.0%
Matthew Boyd
7.7%
xwOBA Allowedlg .315 · lower = better
Janson Junk
.317
Matthew Boyd
.330
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
3.486.72
lg xERA 4.10
now 4.80
4.20
Matthew Boyd
3.486.72
lg xERA 4.10
now 6.00
4.46
WHIPlower is better
Janson Junk
1.221.42
now 1.30
1.35
Matthew Boyd
1.221.42
now 1.29
1.32

Volume · rest of season
Strikeoutshigher is better
Janson Junk
4060.20
now 43
0
Matthew Boyd
4060.20
now 31
0
Winshigher is better
Janson Junk
.0004.20
now 3
0–0
Matthew Boyd
.0004.20
now 2
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
Sell HighMatthew Boyd — sell high. His value is peaking; good time to trade him.conf 0.95
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