Last Supper 100k
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Event overview
Last Supper 100k is a year-end ultramarathon in Roxbury, New Jersey held on December 27, 2025. The event offers both solo and relay options, with relay teams capped at 10 runners. Registration closes on Wednesday, December 10 at 11:59 PM ET. The event proceeds in all weather conditions - snow, rain or shine.
Distances
- 100K Solo
- 100K Relay (teams up to 10 members)
Course and logistics
The course begins at Horseshoe Lake in Roxbury and passes through Roxbury, Flanders, Mount Olive, Budd Lake, Hackettstown, Byram, Hopatcong, Jefferson, Mount Arlington and returns to Roxbury. The route is roughly 70% road and 30% trail and includes sections in Stephen's State Park, Lake Hopatcong Trails and Dickerson Mine Preserve, with views of Lake Hopatcong, Cranberry Lake and Budd Lake. Aid stations are placed approximately every 10k and signage will be used along the route. Organizers advise participants to carry the official course map while racing.
Organizers will not use chip timing or electronic trackers. Instead, participants or relay teams receive a flag at each aid station and must check in with an aid station volunteer to be recorded as having passed that section.
Equipment and awards
Required items include a reflective vest, headlamp or flashlight and GPS (a phone is acceptable). Organizers also recommend a hydration pack and snacks and winter-appropriate clothing. Participants who start and finish receive a finisher medal and a banana. First place solo and first place relay team members receive trophies engraved "Last Supper 100K 1st Place." Visit the organization's website for the most recent information.
