Explore by location
21K events around the world
Build your racing calendar, close to home or further afield. Compare 27 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 Luang Prabang Half Marathon – Run For Children, Garmin Run Philippines and Sekinchan Ultra.
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.
83 listed events · 27 with upcoming dates
Upcoming 21k events
27 matching events, earliest date first. Entry availability is shown separately.
Luang Prabang Half Marathon – Run For Children
LAOLuang Prabang
Luang Prabang Half Marathon – Run For Children: running in Luang Prabang, Laos.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Garmin Run Philippines
PHIPasay, Metro Manila
Garmin Run Philippines: running in Pasay, Philippines.
Date listed · latest organiser confirmation not yet checked.
Sekinchan Ultra
MASSekinchan, Selangor
Sekinchan Ultra: road running in Sekinchan, Malaysia.
· Entry closed
Date listed · latest organiser confirmation not yet checked.
Media Maratón de las Dalcas
CHIDalcahue, Los Lagos
Media Maratón de las Dalcas in Dalcahue, Chile.
Date listed · latest organiser confirmation not yet checked.
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.
Beekse Herfstrun Montferland
NEDBeek Montferland, Netherlands
Beekse Herfstrun Montferland in Beek Montferland, with every timed public running distance supported by its organiser or authorised registration source.
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.
Slachterin, Wommels (Fr)
NEDWommels, Netherlands
Slachterin, Wommels (Fr) in Wommels, with every timed public running distance supported by its organiser or authorised registration source.
Date listed · latest organiser confirmation not yet checked.
Media Maratón del Trueno
CHITalca, Maule
Media Maratón del Trueno in Talca, Chile.
Date listed · latest organiser confirmation not yet checked.
Media Maratón Negrete
CHINegrete, Biobío
Media Maratón Negrete in Negrete, Chile.
Date listed · latest organiser confirmation not yet checked.
21K Ciudad de Canelones
URUCanelones
21K Ciudad de Canelones in Canelones, Uruguay.
Date listed · latest organiser confirmation not yet checked.
Maratón del Mataquito
CHICuricó, Maule
Maratón del Mataquito in Curicó, Chile.
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.
Media Maratón Ruta de Los Ulmos
CHILos Muermos, Los Lagos
Media Maratón Ruta de Los Ulmos in Los Muermos, Chile.
· Entry closed
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.
Arrow Venloop
NEDVenlo, Limburg
Arrow Venloop in Venlo, with every verified timed public running distance published separately.
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.
STGO21K by ASICS
CHIÑuñoa, Metropolitana
STGO21K by ASICS in Ñuñoa, Chile.
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.
Défi PhysioExtra de Terrebonne
CANTerrebonne, Québec
Défi PhysioExtra de Terrebonne in Terrebonne, Canada.
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.
30 van Amsterdam Noord
NEDAmsterdam, Netherlands
30 van Amsterdam Noord in Amsterdam, with every timed public running distance supported by its organiser or authorised registration source.
Next date not listed
Race guide and recorded editions →5K y 21K de Oliva a Oliva Nova
ESPOliva, Spain
5K y 21K de Oliva a Oliva Nova in Oliva, with every verified timed running distance published separately.
Next date not listed
Race guide and recorded editions →Airborne Freedom Run
NEDArnhem, Netherlands
Airborne Freedom Run in Arnhem, with every timed public running distance supported by its organiser or authorised registration source.
Next date not listed
Race guide and recorded editions →ALETSCH SEMI-MARATHON
SUI
Historical results collected from the UTMB Index.
Next date not listed
Race guide and recorded editions →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 →Blefjells Beste — BLEFJELLS BESTE 21K
NOR
Historical results collected from the UTMB Index.
Next date not listed
Race guide and recorded editions →Choosing a race away from home
The unfiltered upcoming calendar includes events in Anglesea (1), Beek Montferland (1), Brighton (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 21k events are coming up in the world?
Luang Prabang Half Marathon – Run For Children is listed for 24 October 2026 (status to be confirmed). Garmin Run Philippines is listed for 25 October 2026. Sekinchan Ultra is listed for 25 October 2026 (entry closed). 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.