MLB Daily DeltaWeek 25 · September 10, 2026
Portrait of Didier Fuentes
Didier Fuentes
ATL · P
Change to
Portrait of Riley O'Brien
Riley O'Brien
STL · P
Change to
Who's more valuable, rest of season

Didier Fuentes.

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

Head-to-head
K
ERA
WHIP
W
SV

Didier Fuentes wins 3 categories (K, ERA, WHIP); Riley O'Brien wins 1 (SV); 1 even.

04

Under the hood

Underlying skill — each value vs league avg
Fastball Velolg 94.0 · higher = better
Didier Fuentes
97.2
Riley O'Brien
97.8
Swinging-Strike %lg 11.0% · higher = better
Didier Fuentes
15.9%
Riley O'Brien
11.2%
Strikeout %lg 22.0% · higher = better
Didier Fuentes
31.8%
Riley O'Brien
22.7%
Chase %lg 28.5% · higher = better
Didier Fuentes
32.1%
Riley O'Brien
28.2%
Hard-Hit % Allowedlg 40.0% · lower = better
Didier Fuentes
35.8%
Riley O'Brien
41.8%
Barrel % Allowedlg 8.0% · lower = better
Didier Fuentes
6.3%
Riley O'Brien
7.0%
xwOBA Allowedlg .315 · lower = better
Didier Fuentes
.269
Riley O'Brien
.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
Didier Fuentes
2.065.30
lg xERA 4.10
now 2.78
2.99
Riley O'Brien
2.065.30
lg xERA 4.10
now 3.20
4.58
WHIPlower is better
Didier Fuentes
.9001.51
now 1.10
1.14
Riley O'Brien
.9001.51
now 0.99
1.36

Volume · rest of season
Strikeoutshigher is better
Didier Fuentes
4035.80
now 27
6
Riley O'Brien
4035.80
now 27
5
Winshigher is better
Didier Fuentes
.0005.60
now 4
11
Riley O'Brien
.0005.60
now 3
01
Saveshigher is better
Didier Fuentes
.00019.60
now 0
0
Riley O'Brien
.00019.60
now 14
23
If you already own them — trade angle
BuyDidier Fuentes — buy.conf 0.92
SellRiley O'Brien — sell.conf 0.83
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