Part of the appeal is that there are no restrictions on style - every age-group category (the 16 to 17-year-olds, known as the cadets, 18 to 21-year-olds, and the seniors) will feature performers from across the range of disciplines within the sport, performing both katas (compulsory figures) and kumite (the fighting itself). There's also a team competition, and among the favourites will be the British Sports team, including Wayne Otto, twice world champion, the Ishin-ryu team, looked after by national team coach Ticky Donovan, and the Sekudo team, coached by another former world champion (and tournament organiser), Abdu Shaher. For a day of explosive action, make your way to south London.
English National Karate Championships, National Sports Centre, Crystal Palace (081-778 0131) Sun 10.30am (finals begin 6pm). Tickets £5 adults, £3 under-16s