Lleyton Hewitt warmed up for the US Open in style as he claimed his second consecutive ATP title at the TD Waterhouse Cup.

Hewitt, who won the Washington title last week, beat Peru's Luis Horna 6-3, 6-1 on Sunday to stretch his unbeaten run to ten matches.

"I played well. I knew it would be a tough match. He has beaten some worthy opponents," Hewitt said.

"I try not to get too worried about things on court. I didn't want anything to cause me to lose focus on what I was out there to do today."