Biles closes out Doha world championships with fourth gold

(Reuters) - American Olympic champion Simone Biles, already the winner of more world championship gold medals than any other gymnast, closed out the 2018 championships with two more medals, one a gold, at Doha on Saturday. Biles pushed her all-time gold medal haul at world championships to a record 14 when she claimed top honors in the floor exercise for her fourth gold in Doha. The 21-year-old also added a bronze on the balance beam to earn her sixth medal this week, the first time since 1987 that a woman has medaled in every event at a world championships. With 20 overall medals, Biles tied Russia's Svetlana Khorkina for the most by a female gymnast in world championships competition. Despite suffering kidney stone problems that briefly sent her to a Doha hospital emergency room before the championships, Biles won gold in the team final, all-around, vault and floor exercise, a silver on uneven bars and bronze on balance beam. Her all-around world title was her fourth, also a record. (Reporting by Gene Cherry in Salvo, North Carolina; Editing by Ken Ferris)