US ultramarathon calendar
Find ultramarathons across the United States
Platypus Ultras is a free calendar of US ultras — search by state, distance, and race date to find ultramarathons near you. From local 50Ks to 100-mile classics, browse upcoming events and dig into course details when you are ready to plan.
Upcoming ultras
Browse the ultramarathon calendar by date and see what is on the schedule nationwide.
Ultras near you
Filter by state or region to find ultramarathons close to home or your next travel race.
Every distance
50K, 50 mile, 100K, 100 mile, and 200+ mile ultras — all in one searchable calendar.
Browse the ultramarathon calendar
Browse the calendar by distance
Jump to curated ultramarathon lists for common ultra distances.
Find ultras near you by region
Explore ultramarathons across the United States, grouped by state and region.