Loading...
Ultras

Ultras, and what they ask of you

Cutoffs, crew access, drop bags, and where your people can park. Nothing here needs an account.
Free, and always will be. NavRun makes money from race-day planning for runners who want it, never from this. Ultras change constantly, sometimes the morning of. Always confirm with the race director and the official website before you rely on anything here.
Not sure which one yet? Watch one first. Course previews and films, made by people who were out there.
883 races

Every race we hold Twenty five at a time. Search a race by its name, or by the name it used to have.

Kilkenny Ridge Race

Stark, NH, US · September 18, 2027 (in 336 days)
On the calendar 45 miles25 miles15.3 miles

King Street Backyard Ultra

Colona, IL, US · November 7, 2026 (in 21 days)
Cancelled Backyard Ultra

Kings Traverse Ultra

Gastonia, NC, US · April 24, 2027 (in 189 days)
Registration open 31 miles

Kingwood Ultras

Frenchtown, NJ, US · September 11-13, 2026 (36 days ago)
Ran · this year's race is done. 100 Mile50 MileMarathon10K12Hr24 Hour48 Hour6Hr

Knobstone 50

Borden, IN, US · April 10, 2027 (in 175 days)
Registration open 50.8 miles

Krampuslauf

Lyme, NH, US · December 5, 2026 (in 49 days)
Registration open 10K5K9hrs

KUS 6/12/24 Hour Run

Marquette, KS, US · November 14-15, 2026 (in 28 days)
Registration open 12hrs24hrs6 Hour Night6hrsNight 12 Hour

La Jornada de las Quebradas

Socorro, NM, US · February 13, 2027 (in 119 days)
Registration open 32 miles

Labor of Love

Las Vegas, NV, US · March 6, 2027 (in 140 days)
Registration open 31 milesMarathonHalf Marathon6.2 miles3.1 miles

Lady of the Lake

Blairsville, GA, US · November 14, 2026 (in 28 days)
Registration open 4hrs8hrs

Lake Haigler 12-Hour

Fort Mill, SC, US · November 21, 2026 (in 35 days)
Registration open 12hrs

Lake Martin 50/50

Alexander City, AL, US · March 6, 2027 (in 140 days)
Registration open 50.18 miles50K

Lake Murray Endurance Run

Lake Murray State Park, OK, US · October 24-25, 2026 (in 7 days)
Registration open 100.4 miles62.6 miles31.1 miles15.9 miles5.1 miles

Lake Norman State Park 30K & 50K Trail Race

Troutman, NC, US · December 5, 2026 (in 49 days)
Registration open 30K50K

Lake Sonoma 100K

Healdsburg, CA, US · April 10, 2027 (in 175 days)
Registration open 62.1 miles31.1 milesHalf Marathon

Lake to Ocean 100K

Port Mayaka, FL, US · June 5, 2027 (in 231 days)
Full 100K

Lake Tye Challenge

Monroe, WA, US · June 5, 2027 (in 231 days)
Registration open 12hrs3hrs6hrs

Lake Vista Lunatics Run

Borden, IN, US · November 8, 2026 (in 22 days)
Registration open 12 Hour6 Hour

Lake Yahou

Anniston, AL, US · October 10, 2026 (7 days ago)
Ran · this year's race is done. distances not checked yet

Laliik Trail Races

Benton City, WA, US · March 6, 2027 (in 140 days)
On the calendar 10 miles11K5K6 Hour

Laps For Love Backyard Ultra

Wichita, KS, US · September 4, 2027 (in 322 days)
Registration open Backyard Ultra

Laramie Peak Endurance Challenge

Douglas, WY, US · July 10-11, 2027 (in 266 days)
Registration open 12hrs24hrs

Last Chance Ultra

Springfield, MO, US · December 5-6, 2026 (in 49 days)
Registration open 100 Mile50 Mile10 miles100K50K

Last Dot Standing and 24/48 Hour by Ten Junk Miles

Beleville, WI, US · September 17-19, 2027 (in 335 days)
Registration open 24hrs (Fri Start)24hrs (Sat Start)48hrs8 Hour (Sat AM)8 Hour (Sat PM)Last Person Standin

Last of the Felascans

Alachua, FL, US · November 21, 2026 (in 35 days)
Registration open Backyard Ultra
Page 16 of 36
How this gets better. Every race here was read off the race's own pages and sourced fact by fact. Where nobody has checked something, it says so instead of guessing.
See something wrong or out of date? Open the race and use the form at the bottom of its page.
Are you the race director? The same page has a form that comes straight to us, and we write back.
Anything else: [email protected]
Got one on the calendar?

NavRun builds your pacing from your own training, then turns it into a plan your crew can follow: when to leave and where to park.

Start free