Trail Running calendar near Harwich 2025-2026

We have found 146 Trailruns within 80 miles of Harwich. See below where and when you can find the races.

Tough but rewarding 10 km fell race around Chingford with 450 m of climbing, hosting the first ever Essex County Championships. Pre entry only and open to Essex eligible runners aged 16 and over, with teams welcome.

Run the Roman Ramble at Billingford Lakes on 19 April 2026 on trails with distances from 5k to ultra. Entries capped at 300, no cups provided so bring your own bottle, and finishers receive a bespoke medal.

Scenic single lap trail races of 10k, 20k and 30k across Barningham Estate in North Norfolk. Support Little Lifts by filling care Boxes for people with breast cancer; fundraising is optional and the top fundraiser wins a prize.

The Other Run offers 5k, 10k, half marathon, marathon and ultra on scenic, mildly undulating quiet roads near Bury St Edmunds, plus bespoke finisher medals and a lucky dip option. Capped at 300 runners with parking included, it promises a f..

May 2026

Take on the Thames Path 100, a scenic 100 mile point to point from Richmond to Oxford with a finish on Oxford University grounds. Riverside trails, aid stations and a 30 hour time limit make for a classic endurance challenge.

UTMB Index

Enjoy coastal off road trails at the Heritage Coast Run in Thorpeness, Suffolk, with 10k, 10k canicross and a half marathon. Wave starts, beach turnarounds and sea views make it a scenic charity challenge for all levels.

Challenge Suffolk's scenic trails at the Holy Trail Ultra Festival on 9 May 2026, with 50 mile and 50 km distances for determined trail runners. Start and finish at Nicholas Everitt Park in Lowestoft, with checkpoints, GPS tracking, a finis..

Join the 30th Halstead & Essex Marathon on scenic low traffic roads through rolling hills, woods and farmland. Limited to 500 runners, this club organised race offers a classic country marathon and a prize for course records.

Run the Zig Zag Marathon or Half Marathon on 10 May 2026 from Suffolk Running Centre in Bury St Edmunds along scenic, mildly undulating roads. Limited to 300 runners, with aid stations, a seven hour cut off and memorable finisher medals.

Join the Oliver Fisher 10k and 5k at Milton Creek Country Park for a scenic off road challenge supporting the Oliver Fisher Special Care Baby Trust. Enjoy trails, medals and a friendly community atmosphere while raising funds for neonatal c..

Run the 13 mile Greenway Challenge in Letchworth Garden City on 10 May 2026, a self guided loop from Standalone Farm along the scenic Garden City Greenway. Receive maps and GPX, enjoy cake and a wooden finisher medal while supporting GRIT c..

Join Black to the Trails at Dunstable Downs and Whipsnade for a welcoming day of trail running with 1K, 5K, 10K and Scotch Bonnet 10K options. Celebrate diversity with music, food, family fun and finishers medals on scenic chalk downland.

Run a scenic point to point trail from Dedham Vale to Harwich through coastal estuaries and Areas of Outstanding Natural Beauty, with 100 mile, 50 mile and 50 km options. Mostly flat grass and trail, UTMB 100M index event.

UTMB Index

Join the Reigate Priory Park 10K on 17 May 2026 for a scenic cross country four lap route in Surrey. Enjoy a friendly race atmosphere, bespoke medals and the chance to support the charity Sport In Mind.

Run spring trails across Hertfordshire farmland at the Stort10 in Hatfield Broad Oak on Sunday 17 May 2026. Choose 10 mile or 5 mile, earn a finisher medal and t shirt or have a tree planted, with prizes and live timing.

Take on 18 miles of scenic Suffolk countryside from Nowton Park to Clare Castle Country Park, running or walking at your own pace. With a friendly atmosphere, medal for all finishers and support for St Nicholas Hospice, this is a challenge..

Explore Canterbury on foot at the Canterbury City Race European Tour from 22 to 24 May 2026. Three lively urban orienteering races send you through the medieval centre, cathedral quarter and university campus for a fast weekend of navigatio..

Explore Canterbury's historic centre in a time trial orienteering, with 5 mile and 5k courses past King's School, Westgate Gardens and St Augustine's Abbey. Fastest time wins and finish is at Canterbury Christ Church University.

Tackle a scenic 26.2 mile marathon across three laps of Richmond Park, with rolling hills and beautiful parkland views. Chip timing, aid stations, medical cover and a lively finish make this a rewarding London park marathon for seasoned and..

Run the scenic Angles Way Ultra along the flat Waveney valley from Thetford to Great Yarmouth, with 50 km and 100 km options finishing by the sea. Fully waymarked and timed, cupless with checkpoints and coach transfers, this is a friendly t..