The Big Half
Sun 1 Sep 2024 London, UK

The Big Half

The Big Half promise a party atmosphere on a landmark-packed, half marathon route which follows some of the famous marathon course in reverse! Charity places available for 2024.

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  • Sun 1 Sep 2024
Tower Bridge, London > Greenwich Park, London

The Big Half



Age 17 & over

  • 13.1 miles road running


The Big Half has an unmissable festival atmosphere – and everyone's invited!

Brought to you by the organisers of London's famous marathon, you can get set for 13.1 miles of fun today taking in some of the marathon route from a completely different perspective!


  • London's community half

    Bringing together Londoners of all backgrounds and runners of all abilities from everywhere.

  • Running festival

    A party atmosphere is promised and a route banked with cheering supporters too!

  • four of London's boroughs

    Enjoy the traffic-free city on some of the famous marathon route in the reverse direction.

  • All fitness levels
  • Event expo
  • Event village
  • Families
  • Fancy dress
  • Newcomers
  • Spectators
  • Wheelchair users

Championship entries

The Big Half 2023 will incorporate the official trial race for the 2023 World Athletics Road Running Championships Half Marathon.

The first three British men and women to finish the event will guarantee their places in the Great Britain team at this year’s World Athletics Road Running Championships Half Marathon, in Riga, Latvia, on Sunday 1 October (providing they meet the qualifying time of 62:30 for men and 71:30 for women).

To be considered for a Championship place, you must have completed a half marathon in the same time, or faster than, the times listed below at a half marathon after 1 January 2022:

  • Men | sub 1:10:00
  • Women | sub 1:20:00

  • Bag storage
  • Cafe
  • Entertainment
  • Music
  • Toilets
  • Urban

Event HQ

Tower Bridge
Tower Bridge Road
Greater London

  • Distance markers
  • First aid
  • Flat
  • Marshals
  • Point to point
  • Traffic free
  • Water stations

The Big Half course winds its way from the mighty Tower Bridge to the Cutty Sark in Greenwich.

The Big Half route map
From the mighty Tower Bridge to the Cutty Sark along some of the famous marathon route (in reverse!) covering four London boroughs on the way.

  • Recycling
  • Sustainability policy
  • Trees not tees

This event aims to inspire and deliver innovation in mass participation event sustainability.


  • Bottles and cups

    Recycle every plastic bottle.

  • Emmissions

    Reduce power usage and use hydrotreated vegetable oil in generators.

  • Waste

    Waste separation to aid recycling and plastic-free finisher bags made from sugarcane.

  • Trees not tees

    Participants can opt to plant a tree rather than receive a t-shirt, planting the seed for sustainable change.

  • Goody bag
  • Massage
  • Medal

Event photos

Make your memories of The Big Half last forever by purchasing a digital photo package!

  • Fundraising materials
  • Fundraising support
  • Submit fundraising up to 1 month after event

Every year thousands of runners take part in this event and fundraise for charity! While this is hugely beneficial to the charities it gives the runner advantages too, from supporting a cause that is close to your heart to securing a place in this sought-after event and much more.

Benefits of running for charity

Committing to raising money for charity gives you motivation to get outside and run, plus all of these extras which will elevate your event experience:

  • Fundraising support

    Charities know that raising money is all part of the challenge, which is why they provide advice, branded materials and a personalised online fundraising page to help the donations roll in. Think videos for social media, branded imagery and testimonials from previous runners.

  • Training support

    Whether this is your first run or your fifth, you'll need to train for it! You'll receive an in-depth training plan with guidance, plus many charities have access to expert coaches and elite runners too, who can provide exclusive tips for your race preparation. Experts include Runningwithus, Full Potential and Olympic champs.

  • Branded running kit

    When you show up on the day, people need to be able to see clearly that you're supporting a charity. Most charities will give you a branded and personalised t-shirt or vest to run in on the big day, and often a training top too.

  • Support on the day

    When you're partway through your run and your energy is flagging, what you need is a boost from cheering spectators to keep you moving. Many charities set up a cheer station along the route, keeping an eye out for you to send up a huge cheer as you run past!

  • Post-race recovery

    Refreshments and an indulgent post-race sports massage are often provided by charities for their runners. This is the perfect way to recover alongside other people who have run for that cause.

  • Exclusive social groups

    You won't be the only person running for that charity, so it's well worth meeting other runners through the charity's invite-only social media pages! You can organise to meet up for training runs, chat with the charity's expert coaches and share tips and stories with each other to keep the motivation levels running high.

What are charity places?

Charities buy places in this event, then give them to runners who agree to raise money for the charity – these are called charity places. Charity places are a great way to support a good cause and get a place in the event, especially if general entries are closed.

Running a half marathon and charity fundraising go hand-in-hand - which charity will you run for?

Charity places

These charities have places in the event. To secure your place, select a charity, complete the form and follow the instructions.

Health and Medical

Epilepsy Society

Transforming the lives of people with epilepsy through world-leading research, advocacy and care.

  • Running vest
  • Fundraising support
  • Fundraising materials
  • Dedicated contact

Sign up



Macmillan Cancer Support

No one should have to face cancer alone.

  • Personalised running vest
  • Fundraising support
  • Fundraising materials
  • Bespoke training plan
  • Pro training advice
  • Online training zone
  • Cheer squad on the day

Sign up



British Heart Foundation

Coronary heart disease is the UK's single biggest killer but the BHF is leading the fight against it.

  • Running vest
  • Fundraising support
  • Fundraising materials
  • Bespoke training plan
  • Pro training advice

Sign up



Leukaemia Care

Providing vital care and support to all those affected by a blood cancer.

  • Running vest
  • Fundraising support
  • Fundraising materials
  • Dedicated contact

Sign up


  • Age 17 & over
  • 16000 places
  • Entries open
  • Charity entries open
  • Charity places
  • Enter online
Enter now

How to enter The Big Half

There are 3 ways to secure your place in this fantastic event:

  • General entries
  • Resident (community) entries
  • Charity places are available from free + sponsorship pledge


Charity entries

You can secure a charity place in The Big Half and get sponsored for your half marathon miles to support an important cause. Charity places are available from free + sponsorship pledge.

Entry fees

Early bird entry fee


Entry fee (Unaffiliated)


Entry fee (Affiliated)


Really great atmosphere and great for chasing down that PB!! Would recommend to every runner. Lucy R

It was fun running over Tower Bridge. Lynsey K

It's a great race with a big crowd of runners. Connor D

This is my favourite half marathon. I love the route as it takes in some great parts of London- including Tower Bridge and ends up in Greenwich. 

It has great PB potential. Sarah M


I loved the route. Running through parts of London I’ve never visited before. Support was fantastic. I got goosebumps running over London Bridge because the support was so loud.

A great sized medal and a nice T-shirt and food bits at the end. Dan M

It's a flat, fast course with a great atmosphere, fantastic crowds spectating and the medal and T-shirt are very nice. David A

Reviews thanks to RaceCheck