Circuit du Sore Legs

Ware, United Kingdom • 23 May 2027

Circuit du Sore Legs

The Circuit du Sore Legs is the seventh edition of a track running event organised by Zig Zag Running at Wodson Park Sports Centre in Ware, Hertfordshire. Races are held on a 400 metre athletics track and distances are counted by completed laps.

Distances (based on lane 1):

  • 5k - 12.5 laps
  • 10k - 25 laps
  • Half marathon - 52.75 laps
  • Full marathon - 105.5 laps
  • 50k Ultra - 125 laps
  • 6 hour challenge - unlimited laps

Event features include bespoke medals, chip timing, a traffic free athletics track, free parking, race photos, and complimentary tea, coffee & cake for runners. The event is limited to 100 entrants and runs under an ARC licence. Toilets and changing rooms are close to the track and aid stations are positioned around the course.

Registration requires arrival 30 to 45 minutes before each start to collect race numbers and receive a briefing. Overtaking is on the right; participants who intend to walk are asked to use the outer lanes. Distance recorded for the event is based on laps multiplied by 400 metres, so watch distances may vary if runners use outer lanes. Visit the organization's website for the most recent information.

Race information

50 km
50k Ultra
Marathon
Full Marathon
Half Marathon
1/2 Marathon
10 km
10k
5 km
6 Hour Challenge
Visit the organization's website for the most recent information.
Trail runs nearby

A five kilometre trail race at Langdon Discovery Nature Park forming the third of five summer rounds, with on-the-day entry at the same price as online and support for local conservation and charity partners.

A low-key Category A fell race inside the M25 held on 19 June 2026, with multiple climbs around Yardley Valley and a finish on Pole Hill overlooking the Lea Valley. Entry is via SPOND and carries a £5 fee.

Beyond London on 20 June 2026 offers a fully signed trail event in London with a 55 km ultra and a 25 km route along the Capital Ring, GPX files, feed stations, chip timing and medical support.

A 21.2 km trail half marathon at Dunstable Downs on 21 June 2026 featuring 450 m of ascent, marked trails, two aid stations, route downloads, and a 250 runner limit.

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