MLB Daily DeltaWeek 25 · September 10, 2026
Portrait of Brayan Bello
Brayan Bello
BOS · P
Change to
Quinn Mathews
STL · P
Change to
Who's more valuable, rest of season

Quinn Mathews.

He projects to help you in more roto categories the rest of the way — ERA and WHIP. Brayan Bello’s box score looks better right now, but the luck-stripped projection flips it.

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

Quinn Mathews wins 2 categories (ERA, WHIP); Brayan Bello wins 1 (K); 1 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Brayan Bello
95.4
Quinn Mathews
93.6
Swinging-Strike %lg 11.0% · higher = better
Brayan Bello
11.9%
Quinn Mathews
11.7%
Strikeout %lg 22.0% · higher = better
Brayan Bello
17.0%
Quinn Mathews
20.4%
Chase %lg 28.5% · higher = better
Brayan Bello
32.5%
Quinn Mathews
26.9%
Hard-Hit % Allowedlg 40.0% · lower = better
Brayan Bello
40.9%
Quinn Mathews
36.2%
Barrel % Allowedlg 8.0% · lower = better
Brayan Bello
7.8%
Quinn Mathews
2.1%
xwOBA Allowedlg .315 · lower = better
Brayan Bello
.351
Quinn Mathews
.291
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
Brayan Bello
2.796.44
lg xERA 4.10
now 5.63
4.89
Quinn Mathews
2.796.44
lg xERA 4.10
now 3.60
4.10
WHIPlower is better
Brayan Bello
1.102
now 1.64
1.41
Quinn Mathews
1.102
now 1.80
1.30

Volume · rest of season
Strikeoutshigher is better
Brayan Bello
4054.80
now 40
9
Quinn Mathews
4054.80
now 3
6
Winshigher is better
Brayan Bello
.0002.80
now 2
01
Quinn Mathews
.0002.80
now 0
00

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

If you already own them — trade angle
SellBrayan Bello — sell.conf 0.90
Buy LowQuinn Mathews — buy low. The dip is a window to acquire.conf 0.78
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