When Yao moved to Beijing, Pang and Tong trained without a coach until 1997, when they began training under Yao again . In the 1999-2000 season, Pang and Tong made their Grand Prix debut . They placed 4th at Skate Canada and 5th at Cup of Russia . They slowly moved up the ranks over the years . At the 2002 Winter Olympics, coming in as the Four Continents Champions, they placed 9th . Following the 2001-2002 season, Pang and Tong began to be contenders . They consistently placed on the podium at their Grand Prix events . They won their first World medal (a bronze) at the 2004 World Championships . In the 2006-2007 season, Pang and Tong were unable to defend their World title . They were forced to withdraw from Skate America due to injury . They won the silver medal at the Cup of China, the Asian Winter Games, and the Four Continents Championships . At Worlds, they placed second . During the 2007-2008 season, Pang and Tong had a rough start, losing two out of their three Grand Prix events . They came back strong midseason by winning the bronze at the Grand Prix Final and their third Four Continents title. They ended their season with a disappointing 5th at the World Championships. During the 2008-2009 season, Pang and Tong had another rough outing at their first event, the Cup of China. Many commentators had written them off, such as Paul Wylie and Tracey Wilson. Despite this, they went on the two win their next Grand Prix events and the final. During that season, they made history, when they went on to win a record setting fourth Four Continents title and have now won more Four Continent titles than any other person. Despite the momentum they had built, they had another disappointing World Championships, where they were once again off the podium. During the 2009-2010 season, Pang and Tong won both of their Grand Prix events and a silver at the Grand Prix Final, defeating all the world medalists at the previous world championship. .