MIAMI GARDENS, Fla. (AP) — Alex Smith shook off five sacks to throw three touchdown passes and help the Kansas City Chiefs earn their first victory by beating the Miami Dolphins 34-15 on Sunday. Smith led touchdown drives of 62, 76 and 66 yards in a span of four possessions as Kansas City took leads of 14-0 and 21-10. The Chiefs improved to 1-2 and won for only the third time in their past 11 games, including postseason.