On Saturday July 25, hundreds of runners and fundraisers will wobble through the streets, as the Sumo Run hits Battersea Park in south-west London.
The event supports education charity Link Community Development International, with all of the money raised from the run going towards improving the quality of education in sub-Saharan Africa.
Jake Laws, fundraising officer for the charity, said: "We've been running the event since 2013 and we absolutely love it! I can't help but laugh every time I see people in the sumo suits, it's a great morning and I'm really looking forward to it happening again!"
The 5k run around Battersea Park has proven very successful in prior years, with the event even setting a Guinness World Record for the largest amount of people running wearing sumo suits.
Laws said: "Not only is it an exhilarating 5k event with lots of laughs, but participants can leave Battersea Park knowing they have done a good deed to help improve the lives of children in Africa."
Registration is £25, which includes a sumo suit. The amount of fundraising required is £150.
If you'd like to find out more, or register for the run, visit the Sumo Run website.