MLB Daily DeltaWeek 25 · September 10, 2026
Portrait of Gordon Graceffo
Gordon Graceffo
STL · P
Change to
Victor Mederos
ATL · P
Change to
Who's more valuable, rest of season

Too close to call.

They split your categories 22. Take whoever fills a bigger need.

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

Gordon Graceffo wins 2 (K, W); Victor Mederos wins 2 (ERA, WHIP); SV n/a.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Gordon Graceffo
95.4
Victor Mederos
97.2
Swinging-Strike %lg 11.0% · higher = better
Gordon Graceffo
8.8%
Victor Mederos
15.1%
Strikeout %lg 22.0% · higher = better
Gordon Graceffo
18.2%
Victor Mederos
23.3%
Chase %lg 28.5% · higher = better
Gordon Graceffo
28.1%
Victor Mederos
33.2%
Hard-Hit % Allowedlg 40.0% · lower = better
Gordon Graceffo
43.1%
Victor Mederos
39.2%
Barrel % Allowedlg 8.0% · lower = better
Gordon Graceffo
8.8%
Victor Mederos
3.8%
xwOBA Allowedlg .315 · lower = better
Gordon Graceffo
.326
Victor Mederos
.290
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
25.91
lg xERA 4.10
now 1.80
4.22
Victor Mederos
25.91
lg xERA 4.10
now 0.00
3.70
WHIPlower is better
Gordon Graceffo
.9001.72
now 0.90
1.37
Victor Mederos
.9001.72
now 0.50
1.24

Volume · rest of season
Strikeoutshigher is better
Gordon Graceffo
4019.60
now 14
2
Victor Mederos
4019.60
now 0
0
Winshigher is better
Gordon Graceffo
.0005.60
now 4
01
Victor Mederos
.0005.60
now 0
00

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
Sell HighVictor Mederos — sell high. His value is peaking; good time to trade him.conf 0.81
Tweet