After graduating to the senior ranks, Yoo continued to play with both Jung and Shin Baek-cheol, her partner in her last year of junior play. She and Shin were mixed doubles runners-up at the 2010 Swiss Open Super Series. Later that year, she and Jung won their first Grand Prix title, the Korea Grand Prix. However, shortly afterward, both pairings were split up.
The BWF Superseries, which was launched on 14 December 2006 and implemented in 2007,[3] was a series of elite badminton tournaments, sanctioned by the Badminton World Federation (BWF). BWF Superseries levels were Superseries and Superseries Premier. A season of Superseries consisted of twelve tournaments around the world that had been introduced since 2011.[4] Successful players were invited to the Superseries Finals, which were held at the end of each year.
