The JLA Banked Slalom returns to Mammoth Mountain from Friday, March 5 through Sunday, March 7, 2027, with the resort publishing an overall event window from 8:00 AM Friday to 4:00 PM Sunday. The annual snowboard race celebrates professional snowboarder Jeff Anderson and brings his friends, family and the wider riding community together on the mountain where he grew up. The JLA Project organizes the event with Mammoth Mountain; every entry-fee dollar benefits the project, whose work includes building, maintaining and improving Mammoth Lakes' Volcom Brothers Skate Park and supporting grassroots snowboarding. The exact race day, course, check-in, practice, start order, timing system, divisions, awards and daily hours are not published yet, so TrickBook does not stretch the three-day overall listing into assumed 8:00 AM-4:00 PM daily race hours. Registration is not open on the current page: Mammoth explicitly says to check back for details, requires every participant to register online, and says on-site registration will not be available. No current entry fee, deadline, capacity, waitlist, age bracket, skill requirement, waiver flow, guardian rule, lift-ticket inclusion, refund policy or equipment rule is posted. The official page calls it a snowboard race; TrickBook therefore lists snowboarding only and does not import skiing or prior-edition divisions. Spectator access, a dedicated viewing area, tickets, livestream and replay are also unannounced. The current official hero shows a large group of helmeted snowboarders posing on snow beside an orange-netted race course at the JLA Banked Slalom; the exact 2400x1350 image has been visually reviewed and stored byte-identically on TrickBook-controlled storage. Mammoth offers free general base-lodge parking where signed, plus a free Main Lodge parking shuttle from 7:00 AM to 5:00 PM and free town/base-lodge transit, but the event has not named its race base or reserved parking plan. Winter overnight parking is prohibited. Mammoth asks guests requesting accessibility accommodations to contact 800.MAMMOTH or 800Mammoth@MammothResorts.com at least five days ahead when possible; the event publishes no adaptive division or course-viewing accommodation plan. Mountain weather, snow, road and event conditions can change, and the organizer says events and programs are subject to change. Mammoth is outside the ordinary LA radius, but this named annual memorial banked slalom qualifies narrowly under the runbook's major destination-mountain exception: it is a distinctive Southern California snowboard-community race and fundraiser at a terrain venue unavailable in core Los Angeles.

The JLA Project

The current first-party page identifies a snowboard race but does not publish invitation, membership, qualification, residency, skill or prior-result requirements.

Future event; start lists, results, podiums and official result destination are not yet published.

Upcoming Annual JLA Banked Slalom Events

JLA Banked Slalom at Mammoth Mountain 2027