Running for charity is one of the most rewarding decisions you can make as a runner. You are not just chasing a dream finish time or ticking off a bucket-list race; you are helping a cause that truly matters. But with thousands of amazing charities out there and so many stories worth supporting, knowing how to choose a charity to run for can feel overwhelming.
That is exactly where realbuzz comes in. With more than two decades of experience connecting runners to global events and meaningful causes, realbuzz has helped fundraise over £1 billion for more than 5,000 charities. Whether you are taking on your first half-marathon or your fifth world major, we are here to make choosing your charity, fundraising for your event, and enjoying the whole experience as simple and fulfilling as possible.
In this guide, you will learn how to choose a charity to run for, what to think about before committing to a cause, when to kick-start your fundraising, and invaluable fundraising tips from the experts.
Why run a marathon or half marathon for charity?
Before diving into how to choose a charity to donate to or run for, it helps to understand why combining running with fundraising is such a powerful experience.
It gives your training purpose
On days when motivation dips or winter weather makes training tough, knowing your run supports something bigger than yourself adds an extra push. Every mile is taken on for an amazing cause.
It connects you to a wider community
Charity running introduces you to a whole new network of runners, supporters and charity teams who share your enthusiasm. Whether through online groups, event meet-ups or race-day camaraderie, you instantly become part of something special.
It amplifies the impact of your achievement
Crossing the finish line already feels incredible. Doing it knowing you have raised awareness and funds for a cause you care about is a whole new level of fulfilment.
Running for charity is a way to do something positive for the world while doing something positive for yourself. Which brings us to the big question: how do you pick the right cause?
Start with what matters most to you
When figuring out how to choose a charity to run for, the most important step is to reflect on your personal motivations. Your “why” will become the anchor for your entire training and fundraising journey.
Ask yourself questions like:
- What causes have shaped your life or the lives of those close to you?
- Is there a charity you have supported in the past or benefited from personally?
- Are you passionate about health, the environment, social issues, animal welfare or medical research?
- Do you prefer supporting a smaller charity or a large, well-known organisation?
- Does the impact feel more meaningful when you can see it locally, or when it reaches communities around the world?
There is no right or wrong answer. What matters is choosing a cause you genuinely believe in, because people donate to someone passionate about their cause. When your story is authentic and heartfelt, support follows.
If you want inspiration, browse the hundreds of incredible causes listed on the realbuzz charities page. It is a great way to discover organisations you may not have heard of but will feel instantly connected to.

Local or international charities: Which should you choose?
When deciding which charity to donate to, many runners find themselves weighing up whether to support a local cause or an international charity. Both options have huge benefits!
Supporting a local charity
Local charities often provide direct, visible impact within your own community.
- You may have a personal link to their services.
- Supporters understand the cause and are often eager to help.
- Smaller charities can feel more personal, and your fundraising can go a long way.
- You might get local involvement, such as posters in shops or community fundraising events.
If you love the idea of raising awareness on your doorstep, a local charity may be the perfect fit.
Supporting an international charity
International charities often tackle large-scale challenges, such as global health, disaster relief or wildlife conservation.
- Donations have the power to create widespread change.
- Many global charities offer strong fundraising resources and supporter networks.
- Your run can shine a light on important issues beyond your immediate surroundings.
If you want your miles to contribute to a global mission, an international organisation may resonate more deeply with you.
Research your charity options
Once you have an idea of the cause that matters to you, it is time to explore your options. Choosing the right charity for you involves doing a little research to make sure it’s the right fit.
Check the charity’s mission and impact
Look at what the charity actually does day to day.
- What projects or services will your donations support?
- How transparent are they about how funds are used?
- Does their mission excite and inspire you?
A clear sense of impact will make your fundraising feel far more meaningful.
Explore the support they offer runners
Many charities have dedicated charity running teams with:
- Fundraising packs
- Branded running tops
- Event-day representatives for support
- Expert guidance and support for fundraising (don’t worry, realbuzz will also help you through your fundraising journey!)
The level of support can make a huge difference to your training experience.
See how the charity communicates with donors
Do they feel approachable, enthusiastic, and passionate? Do you feel welcomed by their team?
Your relationship with your charity should uplift you throughout training, especially on the hard days.

When Should You Start Fundraising?
A common question runners ask is when to launch their fundraising page. The answer is: earlier than you think. Starting early offers huge benefits:
- You give yourself more time to hit your target.
- You can build momentum gradually rather than feeling pressure close to race day.
- Your training journey becomes a natural part of your campaign.
- You can test different fundraising approaches and see what works best for your audience.
A good rule of thumb is to start your fundraising as soon as you secure your charity place. Whether your event is in six months or eighteen months, the earlier you begin, the easier and more enjoyable the journey becomes. Research from the major fundraising platforms, like GoFundMe, shows that pages with early momentum perform the best, with the platform recommending to share your page within 10 hours of creation.
If you need help raising funds, realbuzz has a huge library of proven fundraising ideas and guides for launching early, promoting your story, and growing donations over time.
Here are a few of our recommended reads:
Your charity journey starts with realbuzz
Learning how to choose a charity to run for is an important part of your running journey, but it doesn't have to be complicated. Start with what matters to you, explore the causes that excite you, consider the impact you want to make and choose the charity whose mission inspires you the most.
At realbuzz, we are here to support you every step of the way. From helping you find the right charity to providing expert fundraising tips, our goal is to make charity running more accessible and rewarding than ever.
Whichever cause you support, you are about to make a difference in ways that reach far beyond the finish line. So take your time, trust your instincts and get ready to run for a reason that truly moves you.
Choose your charity and start your journey today