Riley O'Brien
STL · RP
What the data shows for Riley O'Brien
Riley O'Brien (STL, RP) is an MLB player tracked by WaiverScout's daily pipeline, with data current to 2026-09-23. Riley O'Brien has no active waiver-wire signal as of 2026-09-23. They rank 27 of 200 in their category pool. Yahoo ownership is 73%. Recent-window sample: 6 IP — an early sample.
- Team
- STL
- Position
- RP
- Waiver-wire signal
- None active
- Category rank
- 27 of 200
- Yahoo ownership
- 73%
- Sample size
- 6 IP — an early sample
- Data current to
- 2026-09-23
Current waiver-wire signal
Riley O'Brien has no active waiver-wire signal as of 2026-09-23.
Rolling stats
| Window | Stats |
|---|---|
| 7d | days_count 2 · k 2 · w 0 · ip 2 · qs 0 · sv 1 · insufficient true · era 0 · whip 0.5 · games 2 |
| 14d | days_count 6 · k 7 · w 0 · ip 6 · qs 0 · sv 2 · insufficient false · era 4.5 · whip 1.33 · games 6 |
| 30d | days_count 12 · k 11 · w 0 · ip 11.3 · qs 0 · sv 5 · insufficient false · era 4.78 · whip 1.59 · games 12 |