In Photos: Historic moments of the Olympic Games -- Rio 2016

2016 Rio de Janeiro Olympics -- The Japanese delegation receives a warm welcome at the opening ceremony at Maracana Stadium. (Mainichi/Daisuke Wada)

2016 Rio de Janeiro Olympics -- Fireworks light up over Maracana Stadium after the cauldron was ignited at the opening ceremony. (Mainichi/Naotsune Umemura)

2016 Rio de Janeiro Olympics -- Japan's Hiromi Miyake smiles as she lifts 107 kilograms in her final attempt in the jerk to secure the bronze medal in the 48-kilogram division of women's weightlifting. (Mainichi/Daisuke Wada)

2016 Rio de Janeiro Olympics -- Japan's Kosuke Hagino pumps his fist in the air after winning the gold medal in the men's individual 400-meter medley. (Mainichi/Naotsune Umemura)

2016 Rio de Janeiro Olympics -- Japan's Yuki Ota looks dejected as he trails his opponent in their second round match in the men's fencing foil. (Mainichi/Masahiro Ogawa)

2016 Rio de Janeiro Olympics -- Japan's Shohei Ono, right, competes against Azerbaijan's Rustam Orujov on his way to winning the gold medal by ippon in the final of the 73-kilogram division in the men's judo. (Mainichi/Naotsune Umemura)

2016 Rio de Janeiro Olympics -- The Japanese men's gymnastics team celebrates securing the gold medal in the team event. From left, Koji Yamamuro, Yusuke Tanaka, Kohei Uchimura, Kenzo Shirai and Ryohei Kato are seen. (Mainichi/Hiroyuki Miura)

2016 Rio de Janeiro Olympics -- Japan's Takuya Haneda races in a semifinal of the men's Canadian slalom canoe singles on his way to lifting the bronze medal. Haneda's success marked the first time a Japanese athlete had captured a medal in the sport. (Mainichi/Hiroyuki Miura)

2016 Rio de Janeiro Olympics -- Japan's Teruya Goto scores a try against France just before the end of a quarterfinal match in the men's rugby sevens. The Japanese team finished in fourth place. (Mainichi/Hiroyuki Miura)

2016 Rio de Janeiro Olympics -- Japan's Asuka Teramoto performs on the balance beam in the final of the individual all-around event in the women's gymnastics. Teramoto finished in eighth place. (Mainichi/Masahiro Ogawa)

2016 Rio de Janeiro Olympics -- Japan's Kohei Uchimura raises his arms in celebration after making a clean landing in the horizontal bar in the individual all-around event in the men's gymnastics. Uchimura won his second consecutive gold medal in the event. (Mainichi/Masahiro Ogawa)

2016 Rio de Janeiro Olympics -- Japan's Kei Nishikori covers his face with his hands after defeating France's Gael Monfils in a quarterfinal match in the men's tennis. Nishikori lost in the semifinals but defeated Spain's Rafael Nadal in the bronze medal match to capture Japan's first medal in the sport in 96 years. (Mainichi/Naotsune Umemura)

2016 Rio de Janeiro Olympics -- Jamaica's Usain Bolt wins his third consecutive gold medal in the 100 meters in the men's athletics. (Mainichi/Hiroyuki Miura)

2016 Rio de Janeiro Olympics -- This composite photo shows Japan's Kenzo Shirai successively performing his new twisting technique in the vault in the men's gymnastics to capture the bronze medal. (Mainichi/Masahiro Ogawa)

2016 Rio de Janeiro Olympics -- The Japanese pair of Yukiko Inui, right, and Risako Mitsui perform their free routine to secure the bronze medal in the duet synchronized swimming event. (Mainichi/Naotsune Umemura)

2016 Rio de Janeiro Olympics -- The Japanese women's table tennis team smile after securing the bronze medal by defeating Singapore in the third-place match in the team event. From right, Mima Ito, Ai Fukuhara and Kasumi Ishikawa are seen. (Mainichi/Shin Yamamoto)

2016 Rio de Janeiro Olympics -- Japan's Kaori Icho kisses her gold medal during the award ceremony for the 58-kilogram division in the women's wrestling while raising her four fingers to show that she has won four consecutive Olympic gold medals, the first time a woman had achieved the individual feat in Olympic history. (Mainichi/Daisuke Wada)

2016 Rio de Janeiro Olympics -- Japan's Minami Itahashi performs in the preliminary round of the women's high diving. (Mainichi/Naotsune Umemura)

2016 Rio de Janeiro Olympics -- Japan's Eri Tosaka celebrates after winning the gold medal in the 48-kilogram division in the women's wrestling by defeating Azerbaijan's Mariya Stadnik in the final. (Mainichi/Masahiro Ogawa)

2016 Rio de Janeiro Olympics -- Japan's Saori Yoshida, left, lays down on the mat after failing to win her fourth consecutive gold medal in the women's wrestling after being defeated by American Helen Maroulis in the final in the 53-kilogram division. (Mainichi/Masahiro Ogawa)

2016 Rio de Janeiro Olympics -- Japan's Risako Kawai tackles team leader Kazuhito Sakae to celebrate winning the gold medal in the 63-kilogram division in the women's wrestling. (Mainichi/Naotsune Umemura)

2016 Rio de Janeiro Olympics -- Japan's Ayaka Takahashi, left, and Misaki Matsutomo celebrate after winning the gold medal in the women's badminton doubles by defeating a Danish pair in the final. (Mainichi/Masahiro Ogawa)

2016 Rio de Janeiro Olympics -- Jamaica's Usain Bolt kisses the sixth lane where he ran to win the gold medal in the 200 meters in the men's athletics. (Mainichi/Masahiro Ogawa)

2016 Rio de Janeiro Olympics -- The Japanese synchronized swimming team celebrates after capturing the bronze medal in the team event. (Mainichi/Masahiro Ogawa)

2016 Rio de Janeiro Olympics -- Jamaica's anchor Usain Bolt glances across at Japan's Aska Cambridge in the final of the 4x100-meter relay in the men's athletics. Jamaica won the gold while Japan captured the silver medal. (Mainichi/Naotsune Umemura)

2016 Rio de Janeiro Olympics -- Brazil's Neymar is filled with emotion after winning the gold medal in the men's soccer by scoring the last goal in the penalty shootout in the final against Germany. (Mainichi/Shin Yamamoto)

2016 Rio de Janeiro Olympics -- Tokyo Gov. Yuriko Koike holds the Olympic flag after receiving it from Rio de Janeiro Mayor Eduardo Paes, left, and International Olympic Committee President Thomas Bach, center, in the closing ceremony. (Mainichi/Daisuke Wada)