BARCELONA, April 17 — Norway’s three-time Grand Slam finalist Casper Ruud came out on top in an entertaining 6-3, 6-4 match with Alexandre Muller to reach the Barcelona Open third round on Wednesday.

The 25-year-old Norwegian, runner up at the Monte Carlo Masters last week, was broken twice in the first set and allowed Muller to save 10 of 14 break points.