Marin Ultra Challenge 50K 2026 Final Waitlist Data
Final movement and demographics for the 2026 race (held March 14, 2026). No personal data — see the runner list for individual positions.
Currently on waitlist
31
Days tracked
22
Total ever observed
62
Avg / day added
1.3
Avg / day removed
1.4
Invite-clear rate
21.0%
Final movement
| Window | Added | Invited off | Dropped |
|---|---|---|---|
| Through race day | 27 | 13 | 18 |
Drop rate (left waitlist without invitation): 29.0%. Clear rate (invited off the waitlist): 21.0%. Counts reflect roster changes observed by our automated scraper — early-history accuracy depends on snapshot completeness.
Daily snapshot history
| Date | Total on waitlist | Added | Removed |
|---|---|---|---|
| Mar 14, 2026 | 31 | — | — |
| Mar 13, 2026 | 31 | — | — |
| Mar 12, 2026 | 31 | — | — |
| Mar 11, 2026 | 31 | — | — |
| Mar 10, 2026 | 31 | — | 2 |
| Mar 9, 2026 | 33 | — | 4 |
| Mar 8, 2026 | 38 | 1 | 1 |
| Mar 7, 2026 | 38 | 3 | — |
| Mar 6, 2026 | 35 | 2 | 1 |
| Mar 5, 2026 | 34 | — | 2 |
| Mar 4, 2026 | 36 | 1 | 2 |
| Mar 3, 2026 | 37 | 2 | 4 |
| Mar 2, 2026 | 39 | 2 | 1 |
| Mar 1, 2026 | 38 | — | 8 |
| Feb 28, 2026 | 46 | 1 | — |
| Feb 27, 2026 | 45 | — | 1 |
| Feb 26, 2026 | 46 | 1 | 1 |
| Feb 25, 2026 | 46 | 3 | — |
| Feb 24, 2026 | 43 | — | — |
| Feb 23, 2026 | 43 | 6 | 5 |
| Feb 22, 2026 | 42 | 3 | — |
| Feb 21, 2026 | 39 | 4 | — |
| Feb 20, 2026 | 35 | — | — |
Geographic distribution
Where the 31 current waitlist runners come from.
| State | Count | Share |
|---|---|---|
| CA | 29 | 93.5% |
| WA | 1 | 3.2% |
| NJ | 1 | 3.2% |
Age distribution
| Age range | Count | Share |
|---|---|---|
| Unknown | 31 | 100.0% |