MLB Daily DeltaWeek 27 · September 30, 2026
Chase Petty
CIN · P
Change to
Nick Pivetta
SD · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 0–0, 4 even. Take whoever fills a bigger need.

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

Chase Petty wins 0 (none); Nick Pivetta wins 0 (none); 4 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Chase Petty
96.9
Nick Pivetta
94.0
Swinging-Strike %lg 11.0% · higher = better
Chase Petty
9.4%
Nick Pivetta
10.9%
Strikeout %lg 22.0% · higher = better
Chase Petty
10.8%
Nick Pivetta
30.0%
Chase %lg 28.5% · higher = better
Chase Petty
27.9%
Nick Pivetta
35.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Chase Petty
37.5%
Nick Pivetta
38.2%
Barrel % Allowedlg 8.0% · lower = better
Chase Petty
8.9%
Nick Pivetta
10.1%
xwOBA Allowedlg .315 · lower = better
Chase Petty
.361
Nick Pivetta
.277
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
Chase Petty
3.207.25
lg xERA 4.10
now 6.35
4.10
Nick Pivetta
3.207.25
lg xERA 4.10
now 4.50
4.10
WHIPlower is better
Chase Petty
1.061.37
now 1.24
1.30
Nick Pivetta
1.061.37
now 1.13
1.30

Volume · rest of season
Strikeoutshigher is better
Chase Petty
4033.60
now 2
0
Nick Pivetta
4033.60
now 24
0
Winshigher is better
Chase Petty
.0001.48
now 0
0–0
Nick Pivetta
.0001.48
now 1
0–0

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

If you already own them — trade angle
Sell HighChase Petty — sell high. His value is peaking; good time to trade him.conf 0.91
Hold · wait & seeNick Pivetta — hold.conf 0.50
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