South Korean swimmer Hwang Sun-woo broke an 11-year-old national record in the men’s 2-hundred-meter freestyle on Sunday,… winning his heat to reach the semis. The 17-year-old sensation finished first with 1 minute 44-point-six-two seconds,… beating the previous record set by three-time Olympic medalist Park Tae-hwan at the 2010 Asian Games by point-one-eight seconds. The semi-finals happen Monday,… with the best eight moving on to Tuesday’s final.