MLB Daily DeltaWeek 19 · July 31, 2026
Portrait of Gordon Graceffo
Gordon Graceffo
STL · P
Change to
Portrait of Juan Mejia
Juan Mejia
COL · P
Change to
Who's more valuable, rest of season

Juan Mejia.

He projects to help you in more roto categories the rest of the way — strikeouts, ERA, and saves. 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

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

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Gordon Graceffo
95.5
Juan Mejia
97.4
Swinging-Strike %lg 11.0% · higher = better
Gordon Graceffo
7.6%
Juan Mejia
12.8%
Strikeout %lg 22.0% · higher = better
Gordon Graceffo
15.8%
Juan Mejia
22.5%
Chase %lg 28.5% · higher = better
Gordon Graceffo
24.3%
Juan Mejia
31.5%
Hard-Hit % Allowedlg 40.0% · lower = better
Gordon Graceffo
45.5%
Juan Mejia
39.4%
Barrel % Allowedlg 8.0% · lower = better
Gordon Graceffo
11.0%
Juan Mejia
3.6%
xwOBA Allowedlg .315 · lower = better
Gordon Graceffo
.349
Juan Mejia
.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
27.68
lg xERA 4.10
now 1.80
4.71
Juan Mejia
27.68
lg xERA 4.10
now 6.00
4.16
WHIPlower is better
Gordon Graceffo
.9002.02
now 0.90
1.43
Juan Mejia
.9002.02
now 1.70
1.44

Volume · rest of season
Strikeoutshigher is better
Gordon Graceffo
4038.40
now 14
9
Juan Mejia
4038.40
now 30
21
Winshigher is better
Gordon Graceffo
.0005.60
now 4
14
Juan Mejia
.0005.60
now 1
01
Saveshigher is better
Gordon Graceffo
.0004.40
now 1
01
Juan Mejia
.0004.40
now 3
13
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 sellJuan Mejia — hold.conf 0.60
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