Kazuto Iizawa (born 2 February 2001) is a Japanese middle-distance runner. He won gold medals over 1500 metres at the 2023 Asian Indoor Championships, 2025 Asian Athletics Championships and 2026 Asian Games.
Biography Iizawa won the Japanese Athletics Championships over 1500 metres for the first time in 2022, in Osaka.
In 2023, he set a new Asian indoor record for the indoor mile run in Boston, Massachusetts, with a time of 3:56.01. He won the gold medal in the 1500 meters at the 2023 Asian Indoor Athletics Championships in Kazakhstan, running 3:42.83.
Iizawa won the Japanese Athletics Championships over 1500 metres for the second time in 2024, in Nigata.
Iizawa won the gold medal in the 1500 meters at the 2025 Asian Athletics Championships in Gumi, South Korea, running 3:42.56. Iizawa won the Japanese Athletics Championships over 1500 metres for the third time in Tokyo in July 2025. In September 2025, he competed at the 2025 World Championships in Tokyo, Japan, without advancing to the semi-finals.
In September 2026, Iizawa won the gold medal in the 1500 metres at the 2026 Asian Games in Aichi-Nagoya, Japan, setting a Games record of 3:36.35. In doing so, he became the first Japanese man in 40 years to win the title at the Games.
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