MLB Daily DeltaWeek 31 · October 26, 2026
Portrait of Jack Flaherty
Jack Flaherty
DET · 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

Jack Flaherty 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
Jack Flaherty
92.7
Matthew Boyd
92.8
Swinging-Strike %lg 11.0% · higher = better
Jack Flaherty
12.2%
Matthew Boyd
11.0%
Strikeout %lg 22.0% · higher = better
Jack Flaherty
26.0%
Matthew Boyd
18.5%
Chase %lg 28.5% · higher = better
Jack Flaherty
27.6%
Matthew Boyd
32.1%
Hard-Hit % Allowedlg 40.0% · lower = better
Jack Flaherty
45.5%
Matthew Boyd
37.6%
Barrel % Allowedlg 8.0% · lower = better
Jack Flaherty
8.2%
Matthew Boyd
7.7%
xwOBA Allowedlg .315 · lower = better
Jack Flaherty
.321
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
Jack Flaherty
3.596.69
lg xERA 4.10
now 5.81
4.28
Matthew Boyd
3.596.69
lg xERA 4.10
now 6.00
4.46
WHIPlower is better
Jack Flaherty
1.161.74
now 1.61
1.36
Matthew Boyd
1.161.74
now 1.29
1.32

Volume · rest of season
Strikeoutshigher is better
Jack Flaherty
4089.60
now 64
0
Matthew Boyd
4089.60
now 31
0
Winshigher is better
Jack Flaherty
.0002.80
now 0
0–0
Matthew Boyd
.0002.80
now 2
0–0

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

If you already own them — trade angle
Hold · leans sellJack Flaherty — 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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