ENTER THE SAN DOMENICO 20 & 10 MILER RACES!
ENTRIES:
10 MILER - £18 Affiliated £20 Un-Affiliated
20 Miler - £30 Affiliated £32 Un-Affiliated
START & FINISH:
Merthyr Leisure Village
9.30am 10 mile start
9.45am 20 mile start
What3Words: ///asserts.copper.space
Announcing CMB Engineering as sponsor of the San Dom 20/10 Races 2026
We're delighted to reveal our new race sponsor, CMB Engineering!
'CMB Engineering is Wales' largest independent building services contractor, built on strong family values that drive our commitment to quality, integrity and long term partnerships.
CMB is proud to play an active role in supporting the communities we work in. As part of our commitment to creating lasting positive impact, we are delighted to support local community groups and grassroots sport. This includes running, football, boxing, rugby, cycling, ice hockey and other local initiatives.
For us, this support reflects our genuine passion for sport and the positive influence it can have on individuals and communities. We value the opportunity to help people reach their goals, raise money for important causes and give something back to the areas connected to our team, clients and projects.'
Rob Borley, Director
The club is really excited to have CMB Engineering on board for this year's race and are hugely appreciative of their support for 2026.
Read more about CMB Engineering here
What your registration includes:
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A running number and timing chip to be collected on the day of the race
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A race momento (to be revealed soon!)
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Water stations along the route
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Chip timed results
Venue details:
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Toilet facilities in Merthyr Leisure Village
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On-Site Parking
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Refreshments in the leisure village
We do ask if you can lift share, bike or look at alternative forms of transport to avoid congestion.
On the Day:
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Race numbers can be collected from the front entrance of the leisure centre from 8.15am
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Collection points are separated for 10 mile entrants and 20 mile entrants and will be clearly marked
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Please arrive early as registration can get busy
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For 2026, we have agreed a staggered start with 10 milers off at 9.30 and the 20 milers at 9.45.
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The aim of the staggered start is to alleviate pressure points on the race route, giving everyone the best opportunity to enjoy the day!
Q. Can I enter on the day?
On the day entries will be available IF the race has not sold out! In previous years the race has sold out so we advise you to enter early.
Entry numbers
10 mile race: 150 runners
20 mile race: 250 runners
The Route:
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Start from the rear of Merthyr Leisure Centre
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Straight the Taff Trail south to Abercanaid, Troedyrhiw and Aberfan and back
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10 mile runners do 1 loop, 20 mile runners do 2.
Q. Can I wear headphones?
The short answer is 'No'. As the route is mainly off road and there are a few crossings, being able to hear the race marshalls is important. Also, the course is on the shared route of the Taff Trail with walkers and bikers also out and about.
Q. Is there a cut off time?
For the 20 mile race, 'Yes'.
The Race Time Limit is 4 hours and 30 minutes. To ensure this is adhered to we will operate a course closure at the 10 Mile mark at 2 hours and 15 minutes.
Please do not enter the 20 Miler if you cannot achieve the cut off and the final time limits.
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Leader Bike and tail runner
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9 Water stations for 20 Miler/4 for 10 Miler
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Fully marshalled course and WA licence applied for
