Mammoth Unbound Series Rail Jam 3 - 2026

About this event

Mammoth Mountain closes the December portion of its 2026/27 USASA Unbound Series with Rail Jam 3 on Wednesday, December 30, 2026, from 8:30 AM to 4:30 PM. The official structured description calls this a freestyle event designed for entry-level skiers and snowboarders to build terrain-park confidence, while the organizer page says the series welcomes all ages and skill levels. Competitors need current USASA membership and active health insurance. The $82.50 event entry is separate from required lift access; registered riders may email the event contact for a race-lift-ticket purchase link. The normal deadline rule is two days before the event, which would be December 28, unless capacity is reached earlier. The page also says back-to-back events can close two days before the first event; it does not clarify whether the December 28 and 30 rail jams invoke that earlier rule, so riders should confirm the live cutoff in LiveHeats and Team App. Capacity is not published; if it fills early, the organizer starts a waitlist and charges only after admission. Late entries are not accepted, and no on-site signup is promised. The exact course, check-in, practice, division order, judging format and medal-ceremony time remain TBA. Event check-in is held by Zoom the night before, with the link and bib-collection instructions posted in the official Team App. Start lists, results and weather changes are also distributed through Team App and LiveHeats. Main Lodge at 10001 Minaret Road is the published venue anchor. Winter parking is free where signed and first come, and free resort/town shuttles normally serve Main Lodge subject to conditions. Helmets are mandatory for competitors, and a valid lift ticket or season pass is required. The listing uses the narrow Mammoth regional exception because this official USASA National Championships qualifier offers on-snow freestyle competition terrain unavailable in core Los Angeles.

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