Hiroshi Hoketsu, 71, Equestrian, Japan

He was born in Tokyo on March 28, 1941. He was the oldest athlete in the 2008 and 2012 Summer Olympic Games. Japan's Hiroshi Hoketsu competed the equestrian individual dressage riding Horse Whisper at the Greenwich Park at the London 2012 Olympic Games. Photo taken on Aug 14, 2008. [Photo by Edmond Tang/for Chinadaily]

Liu Yingzi, 41, Shooting, China

She was born in Yueyang, Hunan province on Jan 27, 1971. Liu won first place on women's trap at the 2007 and 2011 World Championships. She has attended the Olympics twice. She did not qualify for the women's skeet final, ending her Olympic trip with the 12th ranking in 67 shooters. [Photo/Xinhua]

Jordan Jovtchev, 39, Artistic Gymnastics, Bulgaria

He was born in Plovdiv on Feb 24, 1973. Setting a new Olympic participation record for gymnasts, he reached the men's gymnastics rings finals at the London Olympics, which was his sixth appearance at the Games. [Photo/Agencies]

Wong Kam-po, Road cycling, Hong Kong, China

He was born in Hong Kong on March 13, 1973. The 2012 London Olympics is his 5th time to attend the Games. Although he has never won a medal, he has never given up on his Olympic dream. He finished the race as the 37th. [Photo/Xinhua]

Kristin Armstrong, 38, Road Cycling, United States

She was born in Memphis, Tennessee, on Aug 11, 1973. Kristin got her second Olympic cycling gold in women's time trial in London. This is her third time to be part of the Olympics. [Photo/Xinhua]

Oksana Chusovitina, 37, Artistic Gymnastics, Germany

She was born in Bukhara, Uzbekistan, on June 19, 1975. She has represented three countries in her six-time Olympic journey, winning one gold and one silver. IN London, she qualified for the vault finals where she placed in 5th. Afterward She declared she would retire as a gymnast and concentrate on coaching. [Photo/Xinhua]

Chris Hoy, 36, Cycling track, Britain

He was born on March 23, 1976. The Team GB flag carrier at the opening ceremony grabbed two golds of the cycling race in London. Hoy's tears as he received his sixth Olympic gold medal in his fourth Games were described by Rogge as a "defining image" of the Games.

Zhang Xiuyun, 36, Rowing, China

She was born in Wuhan, Hubei province, on Feb 25, 1976. The 1993 world champion has qualified for the Olympic Games for five times. She raced to the sixth in the singles scull finals in London. [Photo/Xinhua]

Wang Zhizhi, 35, Basketball, China

He was born in Beijing on July 8, 1977. Wang was considered one of the leading men of China's men's basketball and has contributed a lot to his team. He has attended the Olympic Games four times. He failed to lead China into the quarterfinals in London.[Photo/Xinhua]

Chen Ying, 34, Shooting, China

She was born in Beijing on Nov 4, 1977. The Beijing Olympics champion won a silver medal at the London Olympics. This is her third time being part of the Games. [Photo/Xinhua]

Li Na, 31, Fencing, China

She was born in Dandong, Liaoning province, on March 9, 1981. At the London Olympics, she won a gold medal in the women's epee team final. This is her fourth time to participate in the Olympics. [Photo/Xinhua]

Du Li, 30, Shooting, China

She was born in Zibo, Shandong province, on March 5, 1982. She won two gold medals during her three different Olympic Games. [Photo/Xinhua]

Shi Dongpeng, 28, 110m hurdles, China

Shi was born in Baoding, Hebei province. He has attended the Olympic Games for three times. Although he hasn't won any medals at the Games, he is regarded as one of the best hurdlers in Asia. [Photo/Xinhua]

Guo Wenjun, 28, Shooting, China

She was born in Xi'an, Shaanxi province, on June 22, 1984. She won gold in the women's 10 meter air pistol at the 2008 and 2012 Olympics. [Photo/Xinhua]

Katerina Emmons, 28, Shooting, Czech Republic

She was born in Plzen of Czech Republic, on Nov 17, 1983. Named the 2008 International Shooter of the Year, Katerina has attended the Olympics for three times. [Photo/Xinhua]