Cardiff Half Marathon

October 2021 edition now on sale!

We’re excited to announce that due to popular demand entries for the 19th edition of the Cardiff Half Marathon, taking place on 3 October 2021 are now open!

The first 5,000 runners to sign up will pay just £37 for an Early Bird Entry (rising to £42) or £32 if they’re affiliated to Welsh Athletics. Those signed up to the R4W Membership scheme can enter for just £33.60 – a 20% saving. 

2,750 Early Bird entries have already been secured by keen pre-registrants this morning – so you’ll need to act fast if you want to secure a discounted space!

The last edition sold out in a record three months, with all Early Bird entries snapped up within hours of launch. With many discovering a new or renewed passion for running during lockdown, we’re expecting demand to be even higher this time around so encourage those keen to run in October 2021 to register now to avoid missing out. 

A limited number of Welsh Distance Double tickets are also available to those keen to run the 2021 ABP Newport Wales Marathon (on 18 April) and Cardiff Half in October 2021. These are priced at just £76, a £15 saving versus entering individually.

Fancy running for a good cause? The first 50 runners to sign up for our Lead Charity the NSPCC can enter for just £1 when agreeing to fundraise £300. 

If like us you can’t wait for the safe return of mass participation events in 2021 and want to line up on that Cardiff Half start-line next October; register now before it’s too late!

Early Bird Entry (available to the first 5,000 to sign up)£37
General Entry (for runners not affiliated to an athletics club)£42
R4W Membership Entry (a 20% discount available exclusively for R4W Members)£33.60
Affiliated Entry (for runners affiliated to England, Scotland & NI Athletics) £40
Welsh Athletics Entry (for runners affiliated to Welsh Athletics)£32
Welsh Distance Double (entry into Cardiff Half & ABP Newport Wales Marathon (18 April 2021) saving £15 – only 500 tickets available) £76
Early Bird NSPCC Fundraiser (available to the first 50 to sign up) £1
NSPCC Fundraiser (when pledging to fundraise £300) £10
International Entrant (runners living overseas) £49

*A non-refundable admin fee will be charged on top of race entry by ACTIVE, who manage our online registration system. You will need to provide a UK Athletics registration number to verify affiliate discounts.

Run for a good cause

Knowing your run has helped others, gives a huge boost to the satisfaction you’ll feel on finishing the race. You’ll also be more highly motivated during your training and the race itself. Hundreds of good causes are represented at the Cardiff Half Marathon each year with in excess of £3 million raised.

Our Lead and Associate Charity Partners have spaces available in the October 2021 edition.


The first 50 to sign up for our Lead Charity the NSPCC can enter for just £1 when agreeing to fundraise £300 to help in their fight for every childhood.


Sign up for £10 when pledging to raise £200 and help Shelter Cymru make sure no-one in Wales has to fight bad housing and homelessness alone. 


Become a BHF Champion and join the fight to beat heartbreak forever. Enter for just £10 when pledging to raise £250.

R4W Membership

Runners registered for the new R4W Membership Scheme can enter the 2021 Cardiff Half Marathon for just £33.60 – that’s less than the Early Bird Entry offer!

R4W Membership offers a mix of benefits; including discounted race entries, ‘fast track’ privileges on event day, free and priority access to an exciting new series of virtual events, discount on sportswear, nutrition, and access to exclusive digital content.

Priced at £60, it offers access to hundreds of pounds worth of discounts and race entries plus perks to enhance your training and event day experience.

To celebrate the launch of this exciting new scheme, 12 lucky new members will be selected at random to receive a free pair of HOKA One One trainers (worth £120) and a 2021 race entry. You must be signed up by 1 September 2020 to be eligible for the draw.

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