MLB Daily DeltaWeek 18 · July 28, 2026
Portrait of Brayan Bello
Brayan Bello
BOS · P
Change to
Chase Petty
CIN · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 22. Take whoever fills a bigger need.

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

Brayan Bello wins 2 (K, W); Chase Petty wins 2 (ERA, WHIP); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Brayan Bello
94.9
Chase Petty
97.0
Swinging-Strike %lg 11.0% · higher = better
Brayan Bello
12.1%
Chase Petty
9.8%
Strikeout %lg 22.0% · higher = better
Brayan Bello
17.0%
Chase Petty
11.1%
Chase %lg 28.5% · higher = better
Brayan Bello
31.8%
Chase Petty
28.6%
Hard-Hit % Allowedlg 40.0% · lower = better
Brayan Bello
43.4%
Chase Petty
36.2%
Barrel % Allowedlg 8.0% · lower = better
Brayan Bello
9.8%
Chase Petty
7.4%
xwOBA Allowedlg .315 · lower = better
Brayan Bello
.367
Chase Petty
.343
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
3.207.25
lg xERA 4.10
now 5.63
5.26
Chase Petty
3.207.25
lg xERA 4.10
now 6.35
4.10
WHIPlower is better
Brayan Bello
1.081.80
now 1.64
1.41
Chase Petty
1.081.80
now 1.24
1.30

Volume · rest of season
Strikeoutshigher is better
Brayan Bello
4055.20
now 40
35
Chase Petty
4055.20
now 2
7
Winshigher is better
Brayan Bello
.0002.80
now 2
12
Chase Petty
.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
Sell HighChase Petty — sell high. His value is peaking; good time to trade him.conf 0.87
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