Worldwide · Endurance Index
Where will you push your limit?
Every start line in the world, one grid. Road and trail running, ultras, cycling and mountain biking, triathlon, open water swimming, paddling, skiing and adventure racing — professional fields and first-timers alike.
Races near meThe Brief
A single, precise map of international endurance racing.
For the Athlete
Build a season, not a spreadsheet. Filter by date window, distance, elevation and entry fee, then register straight through the organizer's official portal.
For the First-Timer
Every listing shows the field level, start time and price up front — so a first 5K or sprint triathlon is as easy to find as a 100-miler.
For the Coach & Crew
Scan a whole state's calendar at once, compare course profiles, and plan travel and crew logistics around confirmed start times.
For the Race Director
List your event for free and send athletes straight to your own registration page — no commission, no middleman. Manage every listing from the Director Portal with per-race analytics, and collect race-day volunteers with built-in sign-ups you can export to CSV.
The Sectors
View master atlasRunning
Road 5Ks to major marathons.
116Trail Running
Singletrack, dirt and vert.
29Ultra Marathons
50K and beyond, into the dark.
40Bicycle Races
Road, criterium and gravel.
13Mountain Bike
Rock, root and descent.
18Adventure Racing
Navigate, run, paddle, ride.
23Triathlon
Swim. Bike. Run.
38Open Water Swimming
Lakes, bays and channels.
12Kayak & Canoe
Flatwater sprints to river epics.
14Skiing
Nordic marathons and skimo.
7Cross Country
Grass, hills and team scoring.
2Backyard Ultra
Last runner standing, loop after loop.
79Journey Races
Multi-day, self-supported stage races.
1Obstacle Racing
Mud, walls and heavy carries.
2Cross-Country Skiing
Nordic track marathons and sprints.
6Biathlon
Ski racing with rifle marksmanship.
1Snowshoeing
Snowbound trails and winter series.
1Multi-Sport
Duathlon, aquabike, hybrid formats.
9From the Editors
Training Guides
Original, practical guidance for endurance athletes — how to choose your first race, structure a season, pack for race day, and read your results. Written by the editors behind the directory, not aggregated from elsewhere.
Beginners
How to Choose Your First Endurance Race
A practical decision framework for picking a first race you can actually finish — and enjoy — from assessing your fitness to using the directory filters.
Planning
Building a Race Season: Timing, Peaks, and Recovery
How to structure a year of racing around a goal event — periodization basics, spacing races, and using My Season to map it all out.
Practical
Race-Day Packing Checklist by Discipline
A discipline-by-discipline packing list so you arrive at the start line with everything you need — and nothing you do not.
Skills
Reading Race Results and Timing Data
Timing sheets are more than a finishing order. Learn what gun time, chip time, splits, age grading, and DNF rates actually tell you about a race and your performance.
On The Horizon
All eventsLakefront Marathon
Twin Cities Marathon
Ironman World Championship Kona
Blue Ridge Ultra
Hartford Marathon
Rocky's Backyard Ultra Race
Toughest Last Man Standing Utah (Tushar Mountains)
Outlast Salt Lake City
Backyard Ultra in New Town
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