2025 Oysho Cardiff Half Marathon

Affiliated Entry is for those registered with a UK Athletics affiliated athletics club – membership numbers must be stated during registration. The other entry categories are for those who are not registered with an athletics club. You will need to provide an up-to-date membership number upon entry so please have this handy and ensure that your club membership is up-to-date.

It will arrive within 7 days of the event at the latest. If you are an Overseas Entrant, you will need to collect it from the Event Village. Overseas entrants will be emailed details on timing and locations for race pack pick up. If your race pack does not arrive in the post, email cardiffhalfmarathon@run4wales.org on the Friday of race weekend and they will arrange a replacement pack for collection at the race.

All runners must be aged 17 or older on the day of the event.

You will be allocated a pen, depending on your predicted finishing time that you will submit when entering the race. Pen number ranges will vary depending on total competitor entries so therefore pen colours can vary between years, even when the same estimated time is given at point of entry. It is unfortunately not possible to change your allocated start pen, so please take care when completing your entry form to ensure you receive an appropriate allocation. The number of runners in each starting pen is carefully calculated to ensure a safe number of participants are in each, so it will not be possible to move forward into an earlier starting pen. You can however move back if you wish.

Yes, the Cardiff Half is a part of the SuperHalfs series. The SuperHalfs are a series of six half marathons (Lisbon, Prague, Berlin Copenhagen, Cardiff and Valencia). If you complete all six races within 60 months (5 years) you will earn a SuperMedal.