MLB Daily DeltaWeek 27 · September 27, 2026
Portrait of Gordon Graceffo
Gordon Graceffo
STL · P
Change to
Portrait of Wandy Peralta
Wandy Peralta
SD · P
Change to
Who's more valuable, rest of season

Wandy Peralta.

He projects to help you in more roto categories the rest of the way — ERA. Gordon Graceffo’s box score looks better right now, but it’s built on luck that won’t hold.

Head-to-head
K
ERA
▶
WHIP
W
SV n/a

Wandy Peralta wins 1 categories (ERA); Gordon Graceffo wins 0 (none); 3 even; SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Gordon Graceffo
95.4
Wandy Peralta
96.4
Swinging-Strike %lg 11.0% · higher = better
Gordon Graceffo
9.7%
Wandy Peralta
11.4%
Strikeout %lg 22.0% · higher = better
Gordon Graceffo
19.0%
Wandy Peralta
15.6%
Chase %lg 28.5% · higher = better
Gordon Graceffo
29.2%
Wandy Peralta
33.2%
Hard-Hit % Allowedlg 40.0% · lower = better
Gordon Graceffo
43.3%
Wandy Peralta
35.9%
Barrel % Allowedlg 8.0% · lower = better
Gordon Graceffo
8.3%
Wandy Peralta
4.5%
xwOBA Allowedlg .315 · lower = better
Gordon Graceffo
.323
Wandy Peralta
.319
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
Gordon Graceffo
25.13
lg xERA 4.10
now 1.80
4.18
Wandy Peralta
25.13
lg xERA 4.10
now 2.73
4.10
WHIPlower is better
Gordon Graceffo
.9001.66
now 0.90
1.37
Wandy Peralta
.9001.66
now 1.44
1.37

Volume · rest of season
Strikeoutshigher is better
Gordon Graceffo
4026.60
now 14
0
Wandy Peralta
4026.60
now 19
0
Winshigher is better
Gordon Graceffo
.0005.60
now 4
0–0
Wandy Peralta
.0005.60
now 0
0–0

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

If you already own them — trade angle
Sell HighGordon Graceffo — sell high. His value is peaking; good time to trade him.conf 0.95
Hold · leans sellWandy Peralta — hold.conf 0.60
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