MLB Daily DeltaWeek 25 · September 11, 2026
Chase Dollander
COL · P
Change to
Portrait of Riley O'Brien
Riley O'Brien
STL · P
Change to
Who's more valuable, rest of season

Chase Dollander.

He projects to help you in more roto categories the rest of the way — strikeouts, ERA, and WHIP. Riley O'Brien’s box score looks better right now, but the luck-stripped projection flips it.

Head-to-head
K
ERA
WHIP
W
SV

Chase Dollander 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
Chase Dollander
98.9
Riley O'Brien
97.8
Swinging-Strike %lg 11.0% · higher = better
Chase Dollander
13.4%
Riley O'Brien
11.2%
Strikeout %lg 22.0% · higher = better
Chase Dollander
24.9%
Riley O'Brien
22.7%
Chase %lg 28.5% · higher = better
Chase Dollander
27.6%
Riley O'Brien
28.2%
Hard-Hit % Allowedlg 40.0% · lower = better
Chase Dollander
52.1%
Riley O'Brien
41.8%
Barrel % Allowedlg 8.0% · lower = better
Chase Dollander
9.9%
Riley O'Brien
7.0%
xwOBA Allowedlg .315 · lower = better
Chase Dollander
.307
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
Chase Dollander
2.655.13
lg xERA 4.10
now 3.89
3.75
Riley O'Brien
2.655.13
lg xERA 4.10
now 3.20
4.58
WHIPlower is better
Chase Dollander
.9001.51
now 1.30
1.26
Riley O'Brien
.9001.51
now 0.99
1.36

Volume · rest of season
Strikeoutshigher is better
Chase Dollander
4063.80
now 47
10
Riley O'Brien
4063.80
now 27
5
Winshigher is better
Chase Dollander
.0004.20
now 3
01
Riley O'Brien
.0004.20
now 3
01
Saveshigher is better
Chase Dollander
.00019.60
now 0
0
Riley O'Brien
.00019.60
now 14
23
If you already own them — trade angle
Hold · wait & seeChase Dollander — hold.conf 0.50
SellRiley O'Brien — sell.conf 0.84
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