Fresh from providing the backdrop to elite padel’s London debut, Kensington Olympia is playing host this weekend to another sport with a rising participation base: Xenom. Xenom has been dubbed “Hyrox for CrossFitters” – like Hyrox, it has a set format designed to test many of the attributes honed in CrossFit and other functional fitness pursuits. Its creators also call it the “decathlon of fitness” owing to its 10 events, which include weightli…