Brecon to Cardiff (Winter) Ultra- 9th Febuary 2020

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The Brecon to Cardiff Ultra, is a 70k, one way, fully marked race that winds its way from Brecon following the River Taff.  You will start in the Brecon Beacons National Park with its dramatic mountain landscapes, past crashing waterfalls and crystal clear reservoirs.  As you head further south you will encounter a different landscape with reminders of Wales’s industrial heritage. It is a UTMB qualifying race worth 3 points. 

The Route

The race starts at 0800 from Brecon. Here you join the Taff Trail which you follow all the way to the finish.  The trail makes much use of an abandoned branch of the Taff Vale Railway and the Glamorganshire Canal.  These had been built in the 18th and 19th centuries to transport coal and iron ore from Merthyr Tydfil, the Cynon Valley and the Rhondda valley to the docks at Cardiff and Barry.  These routes, which although disused had remained largely intact, provide a convenient path along the narrow Taff valley. 

From Brecon the route heads east following the Monmouthshire & Brecon Canal to Talybont-on-usk. Here the route climbs (not steeply – but for quite a long way) to Torpantu, from this point it is downhill all the way to the finish!  Passing Pontsticill Reservoir and the Brecon Mountain Railway you arrive in Merthyr at with great view of both the Cefn Coed Viaduct and Cyfarthfa Castle.  Continuing south you will pass Aberfan and the memorial before reaching Pontypridd and finally the finish line at Nantgarw.

The first 30k of the route is alomost exclusively on footpath or Forestry Trails. From Merthyr the route follows a off road cycle path all the way to the finish. 

As the route is linear competitors park at the finish and be are transported, by coach, to the start in Brecon.  

Event Base, Finish and Regsitration Location

The event base, registration and race finish is at Coleg Y Cymoedd at the following location: 

aspire fitness Nantgarw
Coleg y Cymoedd
Heol Cronchendy
Parc Nantgarw
CF15 7QX 

The event base provides event parking, cafe, large indoor area for registration and finish, toilets, changing rooms and showers. It is easily accessiable off the A470 and one junction off the M4. There are manly hotels, guest houses, cafes and restaurants in the local area. In adddition there are excellant bus and rail links from Cardiff.

Race Brief and Race Start Location

The event brefing and race start location is at Theatr Brycheiniog, Brecon at the following address.  

Theatr Brycheiniog, 
Canal Wharf

LD3 7EW 

Race Timetable 


1700-2000 Registration in Nantgarw


0530-0600 Registration in Nantgarw 

0630 Bus pick up from Nantgarw and travel to Brecon

0700-0715 Registration in Brecon (only avaliable if pre-booked*)

0720 Bus arrives Brecon

0730 Race brief

0800 Race start from Brecon

2000 Cut off time Nantgarw

*if you would like to register in Brecon you can book this by e-mail after you recieve the event notes at the start of February 2020. Please don't e-mail requesting to register in Brecon before this date as they will need to be re-sent.

Entry Options and Prices

Race with parking and coach transport from Cardiff to Brecon is £50.

Compulsory Kit

There is a compulsory kit list that must be carried.  You must carry the following: 

Full body waterproof clothing (top and bottoms), spare warm mid-layer top (this must have thermal qualities and must be in addition to what you are wearing at the start of the race), warm hat, gloves, whistle, mobile phone (fully charged), compass ('real'compass, watch or phone not acceptable), emergency foil blanket, basic first aid kit, torch, water bottle / bladder, food suitable for your requirements, rucksack/bumbag/hydration vest to carry the kit in and waterproof drybag/plastic bag/bag liner to keep your spare layers dry. 


Registration is at the following times, 

-Saturday between 1700-2000 in Nantgarw

-Sunday between 0530-0600 in Nantgarw

At registration you will be required to hand in the 'Emergency Details and Kit decleration Form' which you can print off, fill out and bring with you. You will collect your race number, t-shirt, timing band and drop bag.   

If you would like to register in Brecon this will be possible between 0700-0715, but you will need to arrange this by e-mail in advance. Note if you are using the Bus transport you will only be able to register in Nantgarw. 

Map and route GPS

A map and the gps of the route is avaliable here.

(To download the gps file, click on the mapometer symbol at the top of the map. Then when on the mapometer link click on the 'actions' tab on the left side of the menu bar. Then select the 'Export' buton and follow the prompts.) 


There are 5 checkpoints along the route providing arange of sweet and savoury snacks, water and energy drinks. Checkpoint locations can be seen in the FAQ section (Q17). 

Cut-off Time 

There is a cut off time for the event of 12 hours. This might sound tough but that is only 3.5 mph or 17.08 minutes per mile.  To put it another way at this speed you'd do the first 26 miles in 7 hours 25 minutes!! If you do not reach the intermediate checkpoints at the desired speed (3.5mph) you will be withdrawn from the race. 

Drop Bags

We transport one drop bag from the start to Checkpoint 3 in Merthyr (approximately 22.5miles). This is a large indoor hall where you can briefly escape the elements. Most  runners change footwear here. Drop Bags will be handed in at the start in Brecon. Used drop bags will be returned to the finish and avaliable to collect from approximately 3pm. 


For FAQs please click here.

Race terms and conditions can be viewed here  


There are 600 spaces for 2020. Please note the event has sold out every year! - entries now open!

Enter online here:   

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