Defending champion Andy Murray continued his serene passage into the Madrid Masters semifinals by sweeping past eighth seed Tomas Berdych 6-3, 6-2 on Friday.

Murray didn't even face a break point for the second consecutive match as he adjusted to the indoor conditions caused by the unusually inclement weather in the Spanish capital to extend his winning record over Berdych to 8-6.

"There were different conditions playing under the roof, I adjusted to them well and that was the most pleasing thing for me," said Murray.

"I've only played three or four indoor clay matches in my life, so they weren't easy conditions against a tough opponent."

A fast start put Murray in control as he broke the Berdych serve at the first time of asking to lead 3-0 before serving out for the set.

And the Scot's mixture of deep hitting, slices and drop shots caught the Czech even more off guard in the second set as he won the last five games to seal victory in just over an hour.