Photo: Alpsdake · CC0 1.0 · Wikimedia CommonsRoad RunningWalking & Hiking
OxFam trailwalker
Hong Kong, Hong Kong
November 20, 2026 to November 22, 2026Date confirmed
100 km20 km
City RunSeaside & Coast+4
Road Running · 100K Ultramarathons · 20 Events · 70 Races
100K Ultramarathons
20 verified events with 70 individual races (13 confirmed dates) complete with route maps and elevation profiles.
Events2013 confirmed dates
Competitions70Races & courses
Distances5 - 200 kmCourse distance range
Max. Elevation Gain+1,550 m D+Course elevation profile
Selected Events
Featured Events & Highlights
Photo: Alpsdake · CC0 1.0 · Wikimedia Commons
Photo: Jonathan Beech · CC BY-SA 4.0 · Wikimedia CommonsRoad Running
Garmin Ultra Race Gdańsk
Gdańsk, Poland
December 4, 2026 to December 5, 2026Date confirmed
101 km53 km27 km12 km+1
City RunNature & Off-Road+4
Photo: Fabrizio Lunardi · CC0 1.0 · Wikimedia CommonsRoad Running
100 km del Passatore
Florence, Italy
May 22, 2027 to May 23, 2027Date confirmed
100 km
City RunCulture & History+3
Photo: Siarhei Besarab · CC BY-SA 4.0 · Wikimedia CommonsRoad Running
Lauf zwischen den Meeren
Husum, Germany
June 5, 2027Date confirmed
100 km
Seaside & CoastCity Run+2
Photo: Jonathan Beech · CC BY-SA 4.0 · Wikimedia CommonsRoad Running
Nacht van Vlaanderen
Torhout, Belgium
June 18, 2027Date confirmed
100 km42.2 km21.1 km10 km
City RunNight Run+1
Photo: Vincent van Zeijst · CC BY-SA 4.0 · Wikimedia CommonsRoad Running
Run Winschoten
Winschoten, Netherlands
September 10, 2027 to September 11, 2027Date confirmed
100 km50 km
Point-to-PointNature & Off-Road+2
Photo: Shixart1985 · CC BY 2.0 · Wikimedia CommonsRoad Running
Millau 100km and Marathon
Millau, France
September 25, 2027Date confirmed
100 km42.2 km
City RunCulture & History+2
Photo: Kauk0r · CC BY-SA 3.0 · Wikimedia CommonsRoad Running
Taubertal 100
Rothenburg ob der Tauber, Germany
October 2, 2027Date confirmed
200 km160 km100 km70 km+1
City RunNature & Off-Road+1
Dates & Schedule
Race Calendar
November 2026
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Nov 20, 2026 - Nov 22, 2026 | OxFam trailwalker | Hong Kong, HK | Road RunningWalking & Hiking | 100 km20 km |
December 2026
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Dec 4, 2026 - Dec 5, 2026 | Garmin Ultra Race Gdańsk | Gdańsk, Pomerania Voivodeship, PL | Road Running | 101 km53 km27 km12 km |
May 2027
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| May 22, 2027 - May 23, 2027 | 100 km del Passatore | Florence, Tuscany, IT | Road Running | 100 km |
June 2027
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Jun 5, 2027 | Lauf zwischen den Meeren | Husum, Schleswig-Holstein, DE | Road Running | 100 km |
| Jun 18, 2027 | Nacht van Vlaanderen | Torhout, Flanders, BE | Road Running | 100 km42.2 km21.1 km10 km |
September 2027
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Sep 10, 2027 - Sep 11, 2027 | Run Winschoten | Winschoten, Groningen, NL | Road Running | 100 km50 km |
| Sep 25, 2027 | Millau 100km and Marathon | Millau, Occitanie, FR | Road Running | 100 km42.2 km |
October 2027
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Oct 2, 2027 | Taubertal 100 | Rothenburg ob der Tauber, Bavaria, DE | Road Running | 200 km160 km100 km70 km |
Date to be announced
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Date to be announced | Tralee Half Marathon |  Tralee, Munster, IE | Road Running | 100 km64.37 km50 km42.2 km |
| Date to be announced | Fifth Street Cross - Black Friday 100 |  Emmaus, Pennsylvania, US | Road Running | 100 km50 km26 km13 km |
| Date to be announced | 100 Km of the Somme and Amiens Métropole Marathon | Amiens, Hauts-de-France, FR | Road Running | 100 km42.2 km21.1 km |
| Date to be announced | LOST 118 | Belle Glade, Florida, US | Road Running | 189 km100 km |
Events by Month
Overview & Route Character
The 100K is the classic international ultrarunning championship distance, demanding precise fueling and mental steadiness. Measured asphalt and city courses ranging from fast 5K and 10K races to international half marathons, marathons, and 100K road ultras. In this 100K Ultramarathons directory, RunningCompass curates 20 events comprising 70 individual races, including 13 events with confirmed upcoming dates.
Courses span distances ranging from 5 km to 200 km and elevation gains up to +1,550 m. Key host locations include Hong Kong, Gdańsk, Florence, Husum. Notable events in this selection include OxFam trailwalker, Garmin Ultra Race Gdańsk, 100 km del Passatore.
Questions & Answers
Frequently asked questions (FAQ)
How many events and races are listed under 100K Ultramarathons?
This overview currently includes 20 verified events featuring 70 individual races. Of these, 13 events have confirmed upcoming dates on the calendar, while 7 events await next edition date confirmation from the organizer.
What race distances and elevation profiles are included in 100K Ultramarathons?
Races in this selection span distances of 5 km to 200 km. The most demanding courses reach up to +1,550 m of positive elevation gain. Featured disciplines include Road Running, Walking & Hiking.
Which host cities and flagship events stand out in 100K Ultramarathons?
Top host locations include Hong Kong, Gdańsk, Florence, Husum, Torhout. Representative events in the catalog include OxFam trailwalker, Garmin Ultra Race Gdańsk, 100 km del Passatore, Lauf zwischen den Meeren. The 100K is the classic international ultrarunning championship distance, demanding precise fueling and mental steadiness.
How can I inspect route maps, elevation charts, and date filters for 100K Ultramarathons?
Every event profile provides an interactive route map, a detailed elevation chart across all 70 races, and a GPX track download. You can also switch directly to the interactive map explorer to filter by date range and distance.