World number seven Casper Ruud on Thursday beat Alex Molcan 3-6, 6-4, 6-4 to reach the quarter-finals of the BMW Open in Munich. "It was a very tough test. I didn't get off to a great start," Ruud said. "It gives me confidence I am able to win matches like these," he added. Ruud, 23, reached the semi-finals last year.