Photo by Ethan Miller/Getty Images

Amir Khan turned in perhaps the best performance of his career, easily outpointing Devon Alexander in a 12-round welterweight fight Saturday in Las Vegas.

Khan (30-3, 19 knockouts) was too fast and too good for Alexander, using his long jab and quick, hard combinations to dominate a very good opponent in the Showtime main event. Alexander (26-3, 14 KOs) landed a few good shots but grew more and more frustrated as the fight went on because he couldn’t get to Khan consistently.

The scores were very one-sided: 119-109, 118-110 and 120-108.

Khan has now won four consecutive fights since he was stopped by Danny Garcia in 2012, including both of his fights at 147 pounds. He defeated Luis Collazo by a wide decision in May. The Briton is now in thick of things among the top 147-pounders in the world.

A full report will follow shortly.