Swimming-Lochte wins 200 IM for fourth world title in a row

By Rod Gilmour KAZAN, Russia, Aug 6 (Reuters) - American Ryan Lochte won the men's 200 metres individual medley gold on Thursday to become only the second swimmer after Australia's distance great Grant Hackett to secure four world titles in a row. Victory was secured in the final length as a powerful surge off the wall -- a new rotational technique he has introduced over the last three months -- saw him overtake long-time leader Thiago Pereira of Brazil. Lochte won in one minute 55.81 seconds, as the Brazilian claimed silver in 1:56.65. Shun Wang of China took bronze. (Editing by Ken Ferris)