Ogasawara was one of the most consistent hitters in Japanese baseball. He won two consecutive batting titles from –, and led the league in home runs and RBIs in to win the
Pacific League MVP award. He led the league in hits from –, and has won 6 Japanese Golden Glove awards at first base and
third base. He participated in the
2004 Summer Olympics held in
Athens, Greece, winning a bronze medal. He also played for the
Japanese national team in the
2006 World Baseball Classic, where he hit a home run off
Esteban Loaiza at
Angel Stadium of Anaheim. In 2006, he helped the
Hokkaido Nippon-Ham Fighters win their first Pacific League pennant since , sweeping the
Fukuoka SoftBank Hawks in the playoffs to reach the Japanese championship series against the
Chunichi Dragons. The Fighters beat the Dragons in 5 games to win the Japanese championship series. He became a free agent in 2006, and signed a four-year contract with the
Yomiuri Giants during the off-season. Following 6 successful years with the Giants, Ogasawara would move to the
Chunichi Dragons in 2013 and retired with the team at the conclusion of the 2015 season. ==Post-retirement and coaching career==