Trail Running calendar near Knettishall 2025-2026

Ultra:5K is a unique running event held at Box End Park, Kempston, near Bedford, Great Britain. The challenge involves running multiple 5K races on the hour, every hour, with two options: five 5K races over five hours (25 km total) or three 5K races over three hours (15 km total). The event emphasiz..

The Chelmsford Brew Co Summer 10k Trail Run is a fun, non-competitive event held in Chelmsford, Essex, starting and finishing at the Voodoo Keller Bar. The trail run features a scenic route to the Chelmsford Brew Co brewery, where participants enjoy a drink break before returning to the bar for more..

The Boudicca Way 50km Ultra is a beginner-friendly ultramarathon held in Norfolk, England, following the scenic Boudicca Way Long Distance Path from Diss to Norwich. The 50km route parallels the old Roman Road (A140) and passes through charming villages including Pulham Market, Fritton, Saxlingham,..

The ATW St Albans Summer 10K is an exciting running event designed for the whole family, taking place in Highfield Park, St Albans. The day kicks off with a free family fun run, followed by activities in a vibrant event village featuring a kids zone, live music, and refreshments from the Cow Juice C..

The Winwick Hall Trail Races, held at the scenic Winwick Hall Estate in Northamptonshire, offer fully marked and marshaled trail running events including 10k and 5k distances, plus a 2k children's fun run for ages 4-12. The courses feature a mix of grassland, country paths, and hard-packed trails wi..

Summer Nights is a trail running event organized by Essex Trail Events, taking place on July 23, 2025, at The Wheatsheaf in Hatfield Peverel, Essex. The race covers approximately 6 miles on a new self-navigation route, where participants use a written route description without course markings or mar..

The ZigZag Great Barrow Challenge Day 1 takes place at the Suffolk Running Centre in Bury St Edmunds, IP29 5AX. This event offers runners the choice of 5k, 10k, half marathon, full marathon, or ultra marathon distances, allowing participants to run at their own pace. Day 1 features the Denham Flats..

The Great Barrow Challenge Day 2, hosted by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds. This event is part of a 10-day series offering individual day entries with multiple distance options including 5k, 10k, half marathon, marathon, and ultra marathon. Day 2 featur..

The Kennet & Avon Canal 145 Mile Race (KACR) is a challenging non-stop ultramarathon held in the UK, running from Little Venice, London, to Bristol. Covering 145 miles, the route follows canal, river, and railway towpaths, including the Grand Union Canal, Jubilee River, River Thames, Kennet & Avon C..

The ZigZag Great Barrow Challenge Day 3 takes place at the Suffolk Running Centre in Bury St Edmunds, IP29 5AX. This event is part of a 10-day running series offering individual day entries with distances ranging from 5k to ultra marathon. On Day 3, runners can choose between the full Kirtling route..

The ZigZag Great Barrow Challenge Day 4 takes place at the Suffolk Running Centre in Bury St Edmunds, IP29 5AX. This event is part of a 10-day series offering individual day entries with distances ranging from 5k to ultra marathon, allowing participants to choose their race and pace. Day 4 features..

The 3 Brewers 10km is a scenic trail run held at the 3 Brewers Brewery, nestled in the Hertfordshire countryside near Hatfield. This multi-terrain course covers 10 kilometers with about 70% off-road paths, including local trails, woodland, nature reserves, and country lanes, featuring an elevation g..

The Great Barrow Challenge Day 5, hosted by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds. This event is part of a 10-day running challenge offering various distances including 5k, 10k, half marathon, full marathon, and ultra marathon, allowing participants to choose..

The Trifarm Summer Trail 10k is a scenic trail running event held at Trifarm in Boreham, Chelmsford, Essex. This race is part of the 2025 Trifarm trail seasonal series and features a mostly off-road course, with over 95% of the route on public footpaths and bridleways. The 10k run follows an anti-cl..

The Great Barrow Challenge Day 6, hosted by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds. This event is part of a 10-day running challenge offering various distances including 5k, 10k, half marathon, full marathon, and ultra marathon, allowing participants to choose..

The Zigzag Great Barrow Challenge Day 6 takes place at the Suffolk Running Centre in Bury St Edmunds, featuring the Golding Hills route. This trail event offers multiple distance options including 10k, half marathon, full marathon, and ultra marathon, catering to various fitness levels. The course i..

The Great Barrow Challenge Day 7, hosted by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds, IP29 5AX. This event is part of a 10-day series offering individual day entries with multiple distance options including 5k, 10k, half marathon, full marathon, and ultra maratho..

The Great Barrow Challenge Day 8, hosted by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds. This event is part of a 10-day series offering various distances including 5k, 10k, half marathon, full marathon, and ultra marathon, allowing participants to choose their own p..

The Great Barrow Challenge Day 9, hosted by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds, IP29 5AX. This event is part of a 10-day series offering individual day entries with multiple distance options including 5k, 10k, half marathon, full marathon, and ultra maratho..

The Orion Harriers Forest Five Series is a running event held at Jubilee Retreat, featuring a 5-mile race through forest terrain. Established in 2009 to support the Orion Harriers clubhouse, the 2025 series includes three races on Saturday mornings in June, July, and August. The third race also serv..