12K events in the United Kingdom
Find 12k events in the United Kingdom. Compare 9 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 Andover Half Marathon & 12K, Big Night Out Winchester Trails and Over The Hills Multi Terrain 12K.
Narrow your search to England, Wales and Scotland.
Compare running races by distance, date and surface, from shorter road events to trail races and ultras.
19 listed events · 9 with upcoming dates
Upcoming 12k events
9 matching events, earliest date first. Entry availability is shown separately.
Andover Half Marathon & 12K
ENGAndover, South of England
Andover Half Marathon — High Street, Andover. Listed on runABC (South of England).
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Big Night Out Winchester Trails
ENGWinchester, Hampshire
12K, 22K trail running in Winchester.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Over The Hills Multi Terrain 12K
ENGBradford on Avon, Wiltshire
12K mixed running in Bradford on Avon.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Winchester Trail Run
ENGWinchester, South of England
Winchester Trail Run — Sparsholt College, Winchester. Listed on runABC (South of England).
· Status TBC
Date listed · latest organiser confirmation not yet checked.
The Maverick New Forest Gravel 2027
ENGBurley, Hampshire
The Maverick New Forest Gravel 2027 — 6K, 12K, 22K at Holmsley Campsite and New Forest National Park.
Date listed · latest organiser confirmation not yet checked.
Ultra X Spring Trail Series
ENGMidhurst, West Sussex
Running event in Midhurst, West Sussex.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
The Maverick North Downs Trail 2027
ENGCranleigh, Surrey
The Maverick North Downs Trail 2027 — 5K, 12K, 23K, 43K, 53K at Cranleigh Showground and the North Downs.
Date listed · latest organiser confirmation not yet checked.
Ultra X Wales
WALAbergavenny, Monmouthshire
Ultra X Wales in Abergavenny.
Date listed · latest organiser confirmation not yet checked.
Ultra X England Sunday
ENGPeak District, North of England
Ultra X England Sunday — Edale, Peak District. Listed on runABC (North of England).
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.
Calverley Chaos
ENG
Running event.
Next date not listed
Race guide and recorded editions →Castle Calf
ENGHebden Bridge (see website closer to the date for exact venue), South/West Pennines
12K fell running in Hebden Bridge (see website closer to the date for exact venue).
Next date not listed
Race guide and recorded editions →Lochbroom 12K
SCOUllapool, Scotland
Lochbroom 12K — Clachan, Lochbroom, Ullapool. Listed on runABC (Scotland).
Next date not listed
Race guide and recorded editions →Rabbit Run Wales Half Marathon 2027
WALBridgend, Bridgend County Borough
Rabbit Run Wales Half Marathon 2027 — an officially published half-marathon fixture at Candleston Woods and Merthyr Mawr Warren.
Next date not listed
Race guide and recorded editions →Race Against the Unknown
GBRLondon
Running event in London.
Next date not listed
Race guide and recorded editions →Snowdonia Sea2Sky 12K, 25K & 54K
WALBarmouth, Gwynedd
Snowdonia Sea2Sky — Bath House, The Quay, Barmouth. Listed on runABC (North of England).
Next date not listed
Race guide and recorded editions →Browse states, counties and areas
Choosing a race in United Kingdom
The unfiltered upcoming calendar includes events in Winchester (2), Abergavenny (1), Andover (1). Use the town filter to compare locations, then check the race guide for the start venue and organiser’s travel information.
Questions about 12k events in United Kingdom
What should I check before a running event in United Kingdom?
Choose your distance, then check the route, elevation, cut-off time and entry conditions in the organiser’s race guide.
Which 12k events are coming up in the United Kingdom?
Andover Half Marathon & 12K is listed for 25 October 2026 (status to be confirmed). Big Night Out Winchester Trails is listed for 7 November 2026 (status to be confirmed). Over The Hills Multi Terrain 12K is listed for 8 November 2026 (status to be confirmed). Check the race guide and organiser’s latest information before making plans.
Where can I find race entry details for the United Kingdom?
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.