DAEGU, South Korea — Six days and a slow start later, Usain Bolt finally won gold at the World championships, running the fourth-fastest 200 meters in history to back up his showmanship with a stunning performance.

Bolt was slowest out of the blocks coming off his disqualification for a false start in the 100 final last Sunday that he blamed on “anxiety,” but drove through the bend and powered to the line in 19.40 seconds, just 0.21 seconds of the world record he set to win his first world title two years ago.