Yu/Jin competed at the 2012 World Junior Championships and won the silver medal behind teammates and training partners Sui Wenjing/Han Cong.

Prior to the 2013-14 season, Yu/Jin changed coaches, moving from Luan Bo to Olympic pairs champion Zhao Hongbo, Yao Bin, and Han Bing.

Yu/Jin finished their perfect season by winning gold at the 2014 World Junior Championships in Sofia, Bulgaria.

At the Grand Prix Final they set new personal bests in both the short program and free skate to finish in 5th place.

Despite training senior program layouts for much of the season, they managed to successfully defend their Junior World title, winning both segments of the competition.

They attempted their first throw quadruple salchow in competition at Cup of China and won a bronze medal.

[4] On April 14, 2016, International Figure Skating magazine broke the news of Yu's new partnership with Zhang Hao.

At the 2016–17 Grand Prix Final in Marseille they won the silver medal behind Evgenia Tarasova / Vladimir Morozov.

[7] In their first Grand Prix event of the season, Yu/Zhang placed second at the 2017 Cup of China after ranking second in both the short program and free skate.

Officials from the State General Administration of Sports held a press conference where they attributed the discrepancies to erroneous information provided by the Chinese website.