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Dates confirmed · 2027 · 400 km

MACH LOOP FOUR HUNDRED 2027

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ACP Brevet des Randonneurs Mondiaux (BRM) of 400 km (about 408 km) organised by Mike Kear. Audax UK code 27-1161.

Mach Loop Four Hundred 2027 400 km runs from 3 July 2027 to 4 July 2027, starting in Chepstow, United Kingdom. The route is 408 km with 5,375 m of climbing. Time limit: 27 h.

Distance · 400 km
408km
Climbing
5,375m
Open for entry
Entry cost
10.00 GBP
Entry closes
6 Jun 2027
Register with organizer Official event website

Entry is handled by the organizer. Confirm places, prices and requirements before paying.

StartChepstow3 Jul 2027
FinishChepstow4 Jul 2027
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2027 edition / 400 km

Climbing
5,375m
Time limit
27hours
End date
4 July 2027
Surface
Road

Edition notes

  • Start 06:00; ACP Brevet des Randonneurs Mondiaux (BRM)
  • Entry fee GBP 10.00 online

Training plan · MeepMeep

Train for the start line

MeepMeep, Ultracycling Hub’s own training app, builds a free indoor plan that counts down to this start, within the hours you have each week. It runs in your browser, with no account.

Start
3 Jul 2027
Distance
408km
Climbing
5,375m
Build my training plan

Opens meepmeep.cc with these facts filled in. Check them against the organizer before you plan. How MeepMeep works with the Hub →

Sources & checks

Last checked . Event details can still change.

Verified by the Hub, 15 Oct 2026. We compared this listing with its sources on that date. Not a recommendation.

Edition source
Sources · 1
Audax UK event listing

Source lists the 2027 400 km edition; start 2027-07-03; distance 408 km; entry fee 10.00 GBP.

Checked 15 Oct 2026

Open source
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