Oct 28 (Reuters) - U.S. Open champion Emma Raducanu eased into the Transylvania Open quarter-finals with a controlled 6-3 6-4 win over home favourite Ana Bogdan in the second round on Thursday. Raducanu followed up her maiden WTA Tour win over Polona Hercog -- a battling three-set victory on Tuesday -- with a much improved performance against Bogdan and looked steady on serve, winning 87.5% of her first serve points. "It was so good to play a Romanian here. All the volunteers who go into making this tournament possible, we really appreciate their support. Ana was a great opponent," Raducanu said after the match. "It"s definitely taking me some time to find my feet still. I"m taking some learnings from every match I play. I still don"t think I"m the finished product yet." Raducanu, who announced herself on the grandest stage when she claimed the Flushing Meadows title as a qualifier last month, added that she has gifted her U.S. Open trophy to the Lawn Tennis Association (LTA). "I just thought the LTA had done so much for me and I just wanted them to have it as a sign for everything they had done for me. It"s a little gift," the British number one said. Raducanu will next face 19-year-old Ukrainian Marta Kostyuk.