By Matt Hardy A majority of female athletes have backed sport categorisation based on biological sex rather than gender identity in a survey on transgender inclusion. The survey of 175 top level athletes saw a majority support the move in contact and endurance sport. Over 75 per cent of those who were classed as world-class athletes backed biological sex categorisation in their own sports. Four out of five respondents did say, though, that inclusion for transgender athletes needs to be improved. The Olympic stance sees individual federations able to choose their own transgender policies. Athle…