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Riley O'Brien Rest of Season Fantasy Projections
Dynasty value: $2 · #270 of 590 by multi-year value · Dynasty rankings
Rest of season projections from RotoHound, updated September 11, 2026. Dollar values below are calculated separately for each league format, so the same player is priced differently in a Yahoo 5x5 league than in an Ottoneu 4x4 league.
RotoHound projects Riley O'Brien for 6 strikeouts and a 3.89 ERA across 6 innings over the rest of the season. His highest value is in Ottoneu 5x5 leagues, where he is priced at $12 and ranked #176.
Riley O'Brien projected pitching
| Season | IP | GS | W | SV | HLD | K | BB | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|
| Rest of season | 5.9 | 0 | 1 | 3 | 0 | 6 | 3 | 3.89 | 1.31 |
| 2025 actual | 48.0 | 0 | 3 | 6 | 6 | 45 | 22 | 2.06 | 1.15 |
Riley O'Brien rest-of-season value by league format
Rank is among all players priced in that format, and links to the full rankings where a public board exists. Value is the rest-of-season dollar value RotoHound calculates for a standard league of that type. Import your own league to price Riley O'Brien against your exact roster slots, scoring categories, and salary cap.
Riley O'Brien MLB pitching by season (since 2015)
| Season | IP | GS | W | SV | HLD | K | BB | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|
| 2021 (CIN) | 1.3 | 1 | 0 | 0 | 0 | 2 | 3 | 13.50 | 3.75 |
| 2022 (SEA) | 1.0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.00 | 2.00 |
| 2024 (STL) | 8.0 | 0 | 0 | 0 | 0 | 11 | 8 | 11.25 | 2.63 |
| 2025 (STL) | 48.0 | 0 | 3 | 6 | 6 | 45 | 22 | 2.06 | 1.15 |
Riley O'Brien 2026 Statcast (pitching)
xERA
5.050
34
xwOBA against
.343
34
Whiff%
25.5%
57
K%
22.7%
61
Chase%
28.2%
37
Percentiles rank against this season's qualified MLB population; 100 is best.
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