Complex sentence: Hidayat's forehand jump smash in the 2006 world championships is currently the fastest smash recorded in single's competition: he recorded 305 kph in a match against Ng Wei.
Split into simpler sentences: Hidayat's forehand jump smash in the 2006 world championships is currently the fastest smash recorded in single's competition. He recorded a 305 kph smash in a match against Ng Wei.