Teeanger Akihiro Yamaguchi (18) set a new world record in the men’s 200-metre breaststroke on Saturday clocking two minutes 07.01 seconds at the National Games in Gifu, central Japan on Saturday.u00a0He broke the previous mark of 2:07.28 set by Hungary’s Daniel Gyurta of Hungary on August 1 at the London Olympics.u00a0