Explore by location
Trail 21k events around the world
Build your racing calendar, close to home or further afield. Compare 13 upcoming events by date and location. Open a race guide for the course, recorded editions and official entry information where available.
Events to explore include Mountain Range Trail Series Tai Po, Payé Guazú Trail Run and Carrera del Viento — Parque Eólico Carapé.
Start with a continent, including Europe, South America and North America, or browse the other locations below.
Compare running races by distance, date and surface, from shorter road events to trail races and ultras.
29 listed events · 13 with upcoming dates
Upcoming 21k events
13 matching events, earliest date first. Entry availability is shown separately.
Mountain Range Trail Series Tai Po
HKGHong Kong
Mountain Range Trail Series Tai Po in Hong Kong, Hong Kong.
Date listed · latest organiser confirmation not yet checked.
Payé Guazú Trail Run
ARGColonia Carolina, Corrientes
Payé Guazú Trail Run: trail running in Colonia Carolina.
Date listed · latest organiser confirmation not yet checked.
Carrera del Viento — Parque Eólico Carapé
URUMaldonado
Carrera del Viento — Parque Eólico Carapé in Maldonado, Uruguay.
Date listed · latest organiser confirmation not yet checked.
Rural Trail Esquina
ARGEsquina, Corrientes
Rural Trail Esquina: trail running in Esquina.
Date listed · latest organiser confirmation not yet checked.
Futangue Challenge
CHILago Ranco, Los Ríos
Futangue Challenge in Lago Ranco, Chile.
Date listed · latest organiser confirmation not yet checked.
XTERRA Anglesea Trail Runs
AUSAnglesea, Victoria
XTERRA Anglesea Trail Runs in Anglesea, Australia.
Date listed · latest organiser confirmation not yet checked.
21K Tikal
GUATikal
21K Tikal: running in Tikal, Guatemala.
Date listed · latest organiser confirmation not yet checked.
Trail de Ninaute – Ninaute by l’ACL
FRALimoux, Aude
Trail de Ninaute – Ninaute by l’ACL: running in Limoux, France.
Date listed · latest organiser confirmation not yet checked.
The Maverick East Sussex Trail 2027
ENGBrighton, East Sussex
The Maverick East Sussex Trail 2027 — 5K, 13K, 21K at Stanmer Park and the South Downs Way.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Desert RATS Trail Running Festival by UTMB
USAFruita, Colorado
Desert RATS Trail Running Festival by UTMB — an official UTMB World Series Event.
Date listed · latest organiser confirmation not yet checked.
Gauja Trail by UTMB
LATCesis, Latvia
Gauja Trail by UTMB — an official UTMB World Series Event.
Date listed · latest organiser confirmation not yet checked.
Borrowdale Trail Half Marathon
ENGKeswick, North of England
Borrowdale Trail Half Marathon — Crow Park, Keswick. Listed on runABC (North of England).
Date listed · latest organiser confirmation not yet checked.
Grindstone Trail Running Festival
USANatural Chimneys Park, VA
Grindstone Trail Running Festival — an official UTMB World Series Event.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Race archive
Past races and previous editions
Looking back at a race? Browse the guides below for recorded editions. This section also includes events awaiting a new date and cancelled editions. Previous editions of races in the upcoming calendar are available through their race guides above.
Blackall100
AUSMapleton, Queensland
Trail races over 100 km, 50 km and 21 km through the Blackall Range, based at QCCC Mapleton.
Next date not listed
Race guide and recorded editions →Desafío Columpio de los Deseos
CHISan Rosendo, Biobío
Desafío Columpio de los Deseos in San Rosendo, Chile.
Next date not listed
Race guide and recorded editions →EnergyVision Crêtes de Spa
BELSpa, Liège
EnergyVision Crêtes de Spa in Spa, with each confirmed adult/open running distance listed separately.
Next date not listed
Race guide and recorded editions →Herperduintrail
NEDHerpen, Netherlands
Herperduintrail in Herpen, with every timed public running distance supported by its organiser or authorised registration source.
Next date not listed
Race guide and recorded editions →HOKA Kodiak Ultra Marathons by UTMB
USABig Bear Lake, California
HOKA Kodiak Ultra Marathons by UTMB — an official UTMB World Series Major.
Next date not listed
Race guide and recorded editions →Huellelhue Trail Challenge
CHIValdivia, Los Ríos
Huellelhue Trail Challenge in Valdivia, Chile.
Next date not listed
Race guide and recorded editions →Choosing a race away from home
The unfiltered upcoming calendar includes events in Anglesea (1), Brighton (1), Cesis, Latvia (1). Use the town filter to compare locations, then check the race guide for the start venue and organiser’s travel information.
Questions about 21k events worldwide
What should I check before a running event in World?
Choose your distance, then check the route, elevation, cut-off time and entry conditions in the organiser’s race guide.
Which trail 21k events are coming up in the world?
Mountain Range Trail Series Tai Po is listed for 7 November 2026. Payé Guazú Trail Run is listed for 8 November 2026. Carrera del Viento — Parque Eólico Carapé is listed for 15 November 2026. Check the race guide and organiser’s latest information before making plans.
Where can I find race entry details for the world?
Follow the link from the race guide to the organiser or entry provider, where one is available. Check the entry deadline, eligibility and current availability there. A listed race date does not necessarily mean entries are still open.
Why has a race moved out of the upcoming calendar?
Once its listed dates have passed, a race moves to the past-editions view unless another upcoming edition is recorded. Cancelled events also leave the upcoming list. The race guide stays available, and the event returns when a new date is added.