2009 SD20 Start 14

9:30AM, Sunday 18th March 2018


2018 San Domenico 20 Mile & 10 Mile races

Cancellation – final update 23/03/2018 9AM

It was with deep disappointment that we had to cancel our 20 and 10 Mile races due to be held on Sunday 18th March 2018 in Merthyr Tydfil. On race day it was proved to be the correct decision for competitors, marshals and race traffic.

San Domenico Running Club are a small running club based in Cardiff, South Wales. The 20 Mile and 10 Mile road races are organised by members who volunteer their services and time to put this event on the race calendar. We doubt that anyone is more disappointed than these volunteers that the race had to be cancelled with the time and effort they put in to the event.

After consulting with our service providers, we can confirm that we will not be re-arranging the races to another weekend in 2018.

There is a considerable cost involved when staging an event, and the main costs of service providers and suppliers are already committed to well before race day. San Domenico RC is a not-for-profit organisation that is self-funded by the events it organises throughout the year, enabling it to promote athletics in both the local communities that it operates within and the wider athletics community.

In recompense to you for the loss of your opportunity to run in the 2018 event we will do the following

  1. All entrants will be automatically transferred to the corresponding 2019 event with guaranteed entry (2019 20 Miler & 2019 10 Miler). Administration wise this is the easiest option for our volunteers.
    To give you flexibility there will still be the option to transfer your place to a fellow athlete or switch from one race to the other. This will be open up until 8PM on the Friday before the 2019 race.

  2. You have the option of a refund, by posted cheque, of your race entry fee – you have until 2nd April 2018 to apply for this.
    20 Miler affiliated - £18
    20 Miler un-affiliated - £20
    10 Miler affiliated - £10
    10 Miler un-affiliated - £12

    To do this we need the following information:
    Your race bib number – see here: http://my5.raceresult.com/85546/participants
    Payee name
    Full address

    For this option please email the details to This email address is being protected from spambots. You need JavaScript enabled to view it.

    If you choose this option, please bear with us as it is a manual process for our volunteers to generate cheques and could take many weeks to do so.

We are deeply sorry for the weather-driven cancellation of this year’s events and the inconvenience this may have caused you, but we do hope that you will join us at the 2019 events.

San Domenico RC





2018 San Domenico 20 Mile & 10 Mile races

 Sports Hall, Rhydycar Leisure Centre, Merthyr Tydfil, South Wales, CF48 1UT

New faster course for 2018 and a 10 Miler option!




Race overview

  • Scenic, accurately measured 20 Mile and 10 Mile road race routes, along the Taff Trail
  • Start, Finish & Race HQ at Rhydycar Leisure Centre (CF48 1UT)
  • Excellent training race or long run for Spring Marathons
  • Category Prizes, Changing & Showers / Baggage area (at the competitors own risk) - all in race HQ
  • First Aid Provision - Water / Electrolyte / Gel stations
  • Chip timing including a 10 mile split in the 20 miler
  • Run under Welsh Athletics rules - permit number: SOUTH R.A.C.RR-31
  • Course measurement certificates - TBA
  • Race numbers and timing chips are to be collected on the day
  • No entry fees can be refunded or deferred, even if the race is cancelled or re-scheduled

The course

The start is 50m South of the Leisure Centre on the Taff Trail path which is located to the rear of the Leisure Centre.

Pre-race safety briefing at 09:25AM on start line.

10 Miler course - Certificate of Course Accuracy 18/122

The 10 Miler uses the first 10 miles of the 20 miler, with approx. 280 feet of climb.

Head North towards Merthyr College for 1 x small loop of 1 mile.
Head South down Taff Trail for a 9 mile loop.

20 Miler course - Certificate of Course Accuracy 18/123

The 20 Miler has 560 feet of climb compared to the previous course which had 1250 feet of climb. So whilst it's not flat it should still be significantly quicker than the old course.

Head North towards Merthyr College for 1 x small loop of 1 mile.
Head South down Taff Trail for a 9 mile loop.
Head North towards Merthyr College for 1 x small loop of 1 mile.
Head South down Taff Trail for a 9 mile loop.

Course map here (one lap for 10 Miler, two laps for 20 Miler): http://www.mapmyrun.com/routes/view/1967863805

Entry costs

San Domenico 20 Miler - start time 9:30AM
race limit 400. Min. age 18 on race day




San Domenico 10 Miler - start time 9:30AM
race limit 100. Min. age 17 on race day





Enter here: http://my5.raceresult.com/85546/registration?lang=en

20 Miler time limit

For the 20 miler there is a 4 hours 30 minutes cutoff time, at 10 miles we will operate a 2 hours 15 minutes course closure.

Water stations

There are three water stations on the course, giving a total of twelve opportunities to hydrate. 

The water stations are at the following distances:

Start / 1M / 3.2M / 5.3M / 5.7M / 7.7M / 10M / 11M / 13.2M / 15.3M / 17.7M / Finish

Race numbers - spot the difference

 20 Miler race number - black  10 Miler race number - red
 20Mracenumber 10Mracenumber

Headphone, earphones, ear-buds and similar equipment

 Along with many other race organisers we have endeavoured to persuade runners not to wear headphones, earphones or similar equipment during races. These efforts have failed and consequently we have no alternative but to adopt a strict disqualification practice for any runner seen wearing headphones, earphones or similar equipment. In respect of this race it is important that runners can hear the verbal warnings and instructions issued by race marshals.

Are you fit to run?

You are responsible for being suitably fit and healthy to complete this event. Although the majority of the course is on the Taff Trail, we do not have exclusive use of it so please observe the normal rules of traffic and obey any instructions given by the marshals. There are a number of anti-vehicle bollards in the centre of the path, please take care when passing these. If possible warn other runners of their presence.  Unless otherwise directed by a marshal stay on the right hand side of the route.  If you injure yourself or see anyone hurt please inform the nearest marshal. There will be first aid cover during the event.  There are several access points on the Taff Trail where spectators can watch the race, please observe any instructions given by a marshal at these points.

20 Miler race memento - technical wicking event t-shirt

2018 20 Mile shirt

  • We guarantee t-shirts for all pre-entries
  • We guarantee the correct size t-shirt for all pre-entries up to midnight on Saturday 3rd March
  • Your t-shirt is to be picked up inside the race HQ after you finish the race
  • You must produce your race number to collect it
  • The t-shirt size is allocated as requested by you at time of entry
  • For entries on the day we cannot guarantee a race t-shirt, but we always endeavour to provide one, never failed yet :-)

10 Miler race memento - multi-function headwear (aka Buff!)

not the best photo, but you get the idea...

 2018 10 Mile Buff

Prize presentations and results

The awards ceremony will take place at race headquarters at around 1:15PM. On race day, provisional results will be displayed at race headquarters as soon as available. Results will also be posted on the San Domenico website as soon as possible after the race: www.sandomenico.uk

Race categories, team competitions and course records

20 Miler

Female:1st, 2nd, 3rd. 1st in each of the following age categories - FV35, FV45, FV55+.

Male: 1st, 2nd, 3rd. 1st in each of the following age categories - MV35, MV45, MV55, MV65+.

Team prize: First 4 to count  - based on finish position.

10 Miler

To be added soon...

Course records - 2018 will see a new course, so all new course records

20 Miler - new course for 2018

Female Angharad Mair Les Croupiers RRC 02:24:31
Female V35-44 Lisa Brindley Maindy Harriers 02:50:18
Female V45-54 Angharad Mair Les Croupiers RRC 02:24:31
Female V55+  Shirley Hume Westbury Harriers 02:56:34
Male Tom Charles Trafford AC 01:53:51
Male V40-49 Richard Gardiner Aberdare VAAC 01:56:19
Male V50-59 Paul Rose Maiden Newton Runners 02:18:22
Male V60-69 Christopher Nellins Penarth & Dinas Runners 02:36:19
Male V70+ N/A N/A N/A

10 Miler - new race for 2018

Race photos

Please visit our 'flickr' site to see photos from previous years - here.


Travelodge located 200 metres from the race HQ, see their website for details - http://www.travelodge.co.uk/hotels/366/Merthyr-Tydfil-hotel
There are several hotels and B&B's in the area, a typical search engine is http://www.bedandbreakfastsearcher.co.uk/south-wales/merthyr-tydfil.asp

Directions to the event

The Race HQ, Start and Finish are at Rhydycar Leisure Centre, Merthyr Tydfil, CF48 1UT. Take the junction sign-posted; 'Merthyr Town Centre' and 'Rhydycar' from the A470 dual carriageway. This will take you under a steel bridge. At the first roundabout, take the 3rd exit (right) to Rhydycar Leisure Centre. Rhydycar Leisure Centre will be on your left. Parking is available in front of and to the side of Rhydycar Leisure Centre. The race HQ is in the main hall.

Need to contact us?

Only contact us after you have read all of this page. Please use the contact page on the website - here



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