The LDWA’s toughest mountain event is back – now with a new 20-mile route option that also explores the Black Mountains. Tackle sections of the cancelled Y 100 Sir Fynwy and the classic Valleys 100 route.

Expect epic climbs through the Black Mountains such as Deri, Loxidge Tump and Skirrid via Cwmyoy, Llanthony and Pandy.

Then venture into Blaenavon’s World Heritage landscape, Coity Mountain, and finish along the Monmouthshire & Brecon canal.

Only for the fittest. Are you ready?

Entry:

Entries can be only made via: SiEntries. Entries will open on 1st October 2025

We are limiting the number of entrants over the three distances to 250 as follows:

• 50 mile event – max 125 entrants
• 30 mile event – max 50 entrants
• 20 mile event – max 75 entrants

The costs of entry will be:

• 50-mile: £40 (members) / £55 (non-members)
• 30-mile: £27 (members) / £42 (non-members)
• 20-mile: £18 (members) / £33 (non-members)

Location:
The Girl Guide Hall, Fairfield c.p, Abergavenny NP7 5TR (what3words – readjust.dented.point)

N.B. Free car park available half a mile away at Byfield Lane c.p, Tudor Street, Abergavenny GR SO297141 (what3words – suspended.foreheads.dynamic)

Time Limit:

• Start for walkers 10:00am (Fast walkers and runners to start 11:00am)
• 50-mile event, all to finish by 10:00am Sunday 19th October 2026
• 30-mile event, all to finish by 11.59pm Saturday 18th October 2026
• 20-mile event, all to finish by 07:00pm Saturday 18th October 2026

Questions:     Contact