Off The Tarmac Logo

OTT Trail Marathon
and 10 Mile Race -
Brecon Beacons


25th May 2024 
Registration opens 0700
Marathon race briefing – 0850
Marathon race start – 0900

10 mile race briefing – 0950
10 mile race start – 1000


Affiliated Runners (marathon/10 mile)

Non Affiliated Runners (marathon/10 mile)


Parkwood Outdoors,
Merthyr Tydfil,
CF48 2UR

The Trail Marathon

Trail Marathon within the fantastic Brecon Beacons. Start and Finish at Parkwood – this looped course takes in Pen Y Fan from Graig Fan Ddu before heading up Fan Y Big before heading over to Talybont Reservoir for the final climb up Tor y Foel. A love for the following are a must:- Mountains Trails, Compulsory Kit, Trail Shoes and amazing scenery. All finisher shall receive a OTT Trail Marathon coaster and buff.

You’ll need the following compulsory kit on the day: 
Mobile phone(fully Charged at the start)
Hydration (minimum of 1 liter)
Foil blanket or Bivi Bag  
Food & Emergency Rations (400 Cals emergency rations)
Basic 1st aid kit 
Head torch or torch 
Waterproof jacket and trousers (Tapped seems)
Warm Layer, hat, and Gloves 
Head torch
Bag/Ruck Sack  

There are 3 checkpoints for the race:

– Checkpoint 1  at 7 miles.
– Checkpoint 2 at 14.5 miles
– Checkpoint 3 at  20.5 miles.

The cutoff for this event is 15:00 at checkpoint 3. This is 6 hours after the start of the race, so a pace of 20mins/mile or quicker is required of entrants.

The Trail Marathon Route

Elevation gain – 4896ft/1492m

The 10 Mile Race

The route follows the OTT Marathon Trail route to Checkpoint 1. There is a mandatory check-in at Checkpoint 1 before you leave the marathoners to follow the forestry tracks back to the start line. Once at the start line, you will follow the same trail you did at the start for just under a mile before cutting down onto another track which will take you to the finish line. The mileage for the event is approximately 10.7 miles.

Mandatory kit:

First Aid Kit
Bivy Bag/Foil Blanket
500ml of Water
Waterproof Jacket 

All finisher shall receive a OTT Trail Marathon coaster and buff.

There are no cut offs for this event.

The Trail 10 Mile Route

10.7 mile couse
Elevation gain – 1248ft/380m