Ichiro made his NPB Pacific League debut in 1992 for the Orix BlueWave at the age of 18, but he spent most of his first two seasons in the farm system (accumulating 156 minor league hits and a .368 batting average) because his then-manager, Shōzō Doi, refused to accept Ichiro's unorthodox swing. The swing was nicknamed 'pendulum' (振り子打法, Furiko Dahō) because of the pendulum-like motion of his leg, which shifts his weight forward as he swings the bat, and goes against conventional hitting theory. In his second career game, he recorded his first ichi-gun (Japan's Nippon Professional Baseball League) hit in the Pacific League against Fukuoka Daiei Hawks pitcher Keiji Kimura. Even though he hit in 1993 a home run against Hideo Nomo, who later won an MLB National League Rookie of the Year Award while a Los Angeles Dodger, Ichiro was nevertheless sent back to the farm system on that very day. In 1994, he benefited from the arrival of a new manager, Akira Ōgi, who played him every day in the second spot of the lineup. He was eventually moved to the leadoff spot, where his immediate productivity dissolved any misgivings about his unconventional swing. He set a Japanese single-season record with 210 hits, the first player ever to top 200 hits in a single season. Five other players have since done so: Matt Murton, Norichika Aoki (twice), Alex Ramírez, Tsuyoshi Nishioka, and Shogo Akiyama's 216 hits in 2015, but those players benefited from 140+ game seasons while Ichiro's 210 hits had come in a 130-game season.
Ichiro's .385 batting average in 1994 was a Pacific League record and won the young outfielder the first of a record seven consecutive batting titles. Ichiro also hit 13 home runs and had 29 stolen bases, helping him to earn his first of three straight Pacific League MVP (Most Valuable Player) awards. It was during the 1994 season that he began to use his given name, "Ichiro," instead of his family name, "Suzuki," on the back of his uniform.
Ichiro was signed with the Seattle Mariners in 2001. After playing the first 12 years of his MLB career for the Mariners, Ichiro played two and a half seasons with the New York Yankees before signing with the Miami Marlins. He played three seasons with the Marlins before returning to the Mariners in 2018.
On 20 March 2019, the Seattle Mariners opened the MLB season against the Athletics at the Tokyo Dome and Ichiro started the game in right field, becoming at 45 years old the second oldest position player (behind Julio Franco) to start for a team on its opening day. The next night, the Mariners again played the Athletics at the Tokyo Dome and Ichiro played in his final professional game. He went 0–4 at the plate and in the bottom of the 8th inning walked off the field to applause from his native-country crowd. Later in the day, Ichiro officially announced his retirement. He was the oldest active MLB player at the time.
