MLB Daily DeltaWeek 25 · September 10, 2026
Portrait of Ian Seymour
Ian Seymour
TB · P
Change to
Portrait of Mason Montgomery
Mason Montgomery
PIT · P
Change to
Who's more valuable, rest of season

Mason Montgomery.

He projects to help you in more roto categories the rest of the way — ERA and WHIP.

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

Mason Montgomery wins 2 categories (ERA, WHIP); Ian Seymour wins 1 (W); 1 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Ian Seymour
91.4
Mason Montgomery
98.4
Swinging-Strike %lg 11.0% · higher = better
Ian Seymour
14.9%
Mason Montgomery
16.3%
Strikeout %lg 22.0% · higher = better
Ian Seymour
28.8%
Mason Montgomery
37.9%
Chase %lg 28.5% · higher = better
Ian Seymour
35.1%
Mason Montgomery
32.4%
Hard-Hit % Allowedlg 40.0% · lower = better
Ian Seymour
36.2%
Mason Montgomery
40.9%
Barrel % Allowedlg 8.0% · lower = better
Ian Seymour
10.0%
Mason Montgomery
7.1%
xwOBA Allowedlg .315 · lower = better
Ian Seymour
.295
Mason Montgomery
.250
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
Ian Seymour
25.50
lg xERA 4.10
now 4.66
3.62
Mason Montgomery
25.50
lg xERA 4.10
now 3.91
2.57
WHIPlower is better
Ian Seymour
1.061.35
now 1.28
1.15
Mason Montgomery
1.061.35
now 1.26
1.13

Volume · rest of season
Strikeoutshigher is better
Ian Seymour
4042.40
now 32
6
Mason Montgomery
4042.40
now 30
6
Winshigher is better
Ian Seymour
.0004.20
now 3
01
Mason Montgomery
.0004.20
now 1
00

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

If you already own them — trade angle
BuyIan Seymour — buy.conf 0.74
BuyMason Montgomery — buy.conf 0.92
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