Sui and Han are the first pair skate team to achieve a Super Slam, having won all major competitions in both their senior and junior career.

[4] Sui and Han made their international debut in the 2009–10 ISU Junior Grand Prix, where they won the gold medal in their two events.

[7] On the senior level, Sui and Han were assigned to compete at the 2011 Skate Canada, where they took the silver medal, and the 2011 Cup of China, where they finished 5th.

Sui and Han competed at the 2012 Four Continents Championships and won the gold medal placing 1st in both the short and free skate.

[5] After the season concluded, they switched from longtime coach Luan Bo to Olympic pairs champion Zhao Hongbo, Han Bing, and Yao Bin.

[citation needed] Sui and Han were assigned to two Grand Prix events and began their season at 2013 Skate Canada, where they won the silver medal.

They then competed at the 2014 Four Continents Championships and won the gold medal setting a new personal best overall score of 212.40 points.

[12] For the Grand Prix season, Sui and Han were assigned to compete at 2015 Skate America and 2015 Cup of China.

These results qualified them to the 2015–16 Grand Prix of Figure Skating Final, from which they withdrew due to Sui's injury.

[citation needed] They made their season debut at the 2017 Four Continents Championships, where they won the gold medal with a new personal best score of 225.03 points.

Sui fell on her attempted triple toe loop, relegating them narrowly to second place behind Moore-Towers/Marinaro of Canada in the short program.

"[24] Sui and Han started their season at the Cup of China, placing first in the short program with a personal best of 80.90 under the new +5 GOE system.

[25] They won the free skate as well, with Han doubling a planned triple Salchow as the only error, and received an overall score of 228.37.

[29] They were second in the free skate despite Han's errors on both their planned jumping passes and a few lost levels on lifts and their combination spin.

They were the first Chinese team to win the Grand Prix Final since their coach Zhao Hongbo, and his wife Shen Xue did so eleven seasons earlier.

[30] The favorites heading into the 2020 Four Continents Championships in Seoul, Sui/Han placed third in the short program after inadvertently performing only a throw double flip.

[31] Winning the free skate despite errors on their side-by-side triple Salchows, they won their sixth Four Continents title.

Speaking afterward, Sui said that training had been difficult recently due to concerns about whether they would be able to travel abroad because of the coronavirus pandemic.

[34] Due to the lack of prior appearances during the season, Sui/Han were considered to be dark horses going into the 2021 World Championships in Stockholm.

[36] In the free skate both made jump errors, placing them second in the segment and the silver medalists overall, while Mishina/Galliamov leapfrogged them to take the gold medal.

At their first Grand Prix event, 2021 Skate Canada International, they won the gold medal, defeating silver medalists Pavliuchenko/Khodykin by 30.97 points.

[38] Sui/Han's second Grand Prix event was initially the 2021 Cup of China, but following its cancellation, they were reassigned to the 2021 Gran Premio d'Italia.

Addressing Russians Tarasova/Morozov, who finished second and 0.16 points behind, Sui called them "our friends and competitors," adding, "this is something we are very proud of, because we can maintain this high level of competition between the two pairs, and it has been more than ten years.

"[45] In the free skate, Sui/Han attempted a quad twist in competition for the first time in four years, seeking to compensate for their weaker jump elements.

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.