MLB Daily DeltaWeek 18 · July 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 — strikeouts, ERA, and WHIP. 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

Wandy Peralta wins 3 categories (K, ERA, WHIP); Gordon Graceffo wins 2 (W, SV).

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Gordon Graceffo
95.5
Wandy Peralta
96.4
Swinging-Strike %lg 11.0% · higher = better
Gordon Graceffo
7.5%
Wandy Peralta
11.1%
Strikeout %lg 22.0% · higher = better
Gordon Graceffo
15.5%
Wandy Peralta
15.2%
Chase %lg 28.5% · higher = better
Gordon Graceffo
24.7%
Wandy Peralta
32.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Gordon Graceffo
46.6%
Wandy Peralta
34.2%
Barrel % Allowedlg 8.0% · lower = better
Gordon Graceffo
11.5%
Wandy Peralta
4.3%
xwOBA Allowedlg .315 · lower = better
Gordon Graceffo
.356
Wandy Peralta
.323
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
26.10
lg xERA 4.10
now 1.80
4.87
Wandy Peralta
26.10
lg xERA 4.10
now 2.73
4.16
WHIPlower is better
Gordon Graceffo
.9001.66
now 0.90
1.44
Wandy Peralta
.9001.66
now 1.44
1.43

Volume · rest of season
Strikeoutshigher is better
Gordon Graceffo
4024.60
now 14
10
Wandy Peralta
4024.60
now 19
16
Winshigher is better
Gordon Graceffo
.0005.60
now 4
14
Wandy Peralta
.0005.60
now 0
00
Saveshigher is better
Gordon Graceffo
.0002.40
now 1
01
Wandy Peralta
.0002.40
now 0
0
If you already own them — trade angle
Sell HighGordon Graceffo — sell high. His value is peaking; good time to trade him.conf 0.95
SellWandy Peralta — sell.conf 0.64
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