MLB Daily DeltaWeek 27 · September 27, 2026
Nick Pivetta
SD · P
Change to
Robert Stock
NYM · 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

Nick Pivetta wins 0 (none); Robert Stock 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
Nick Pivetta
94.0
Robert Stock
95.8
Swinging-Strike %lg 11.0% · higher = better
Nick Pivetta
10.9%
Robert Stock
11.8%
Strikeout %lg 22.0% · higher = better
Nick Pivetta
30.0%
Robert Stock
19.7%
Chase %lg 28.5% · higher = better
Nick Pivetta
35.5%
Robert Stock
28.4%
Hard-Hit % Allowedlg 40.0% · lower = better
Nick Pivetta
38.2%
Robert Stock
36.4%
Barrel % Allowedlg 8.0% · lower = better
Nick Pivetta
10.1%
Robert Stock
8.1%
xwOBA Allowedlg .315 · lower = better
Nick Pivetta
.277
Robert Stock
.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
Nick Pivetta
25.58
lg xERA 4.10
now 4.50
4.10
Robert Stock
25.58
lg xERA 4.10
now 1.80
4.10
WHIPlower is better
Nick Pivetta
.9001.58
now 1.13
1.30
Robert Stock
.9001.58
now 0.60
1.30

Volume · rest of season
Strikeoutshigher is better
Nick Pivetta
4033.60
now 24
0
Robert Stock
4033.60
now 4
0
Winshigher is better
Nick Pivetta
.0001.48
now 1
0–0
Robert Stock
.0001.48
now 0
0–0

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

If you already own them — trade angle
Hold · wait & seeNick Pivetta — hold.conf 0.50
Hold · wait & seeRobert Stock — hold.conf 0.55
Tweet