sentences:  In the 200-meter final Bolt beat the field but Dix was the closest to him, running 19.70 seconds to take his second silver of the tournament.He attempted to gain a third medal in the 4 × 100 metres relay final, but a mid-race collision between Darvis Patton and Britain's Harry Aikines-Aryeetey meant the American team's baton never reached Dix's final leg.At the Diamond League 200 m final at the Memorial Van Damme he ran a personal best of 19.53 seconds.