Running in sports gear not for you? Climb into a sumo suit and wobble your way around a 5km course in Battersea Park. All funds raised go to Link Community Development, which works to improve the quality of education for children in sub-Saharan Africa, but it's probably worth taking part just for the photos. Registration will start at 8am and before the race there'll be a mass sumo inflation followed by a sumo warm-up, which should be a big fat laugh for anyone out for an early morning stroll in the park. There are a couple of different registration deals: pay £25 (which includes your inflatable sumo suit) and pledge to raise £150; or pay £49 and just raise what you can.