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| Born | 24 November 2000 | ||||||||||||||||||||||||||||||||
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| Height | 160 cm (5 ft 3 in) | ||||||||||||||||||||||||||||||||
| Weight | 80 kg (176 lb; 12 st 8 lb) | ||||||||||||||||||||||||||||||||
| Rugby union career | |||||||||||||||||||||||||||||||||
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Ayumu Kokaji (born 24 November 2000) is a Japanese rugby union player. She competed for Japan at the 2025 Women's Rugby World Cup.
Kokaji started playing rugby at the age of four and graduated from Sakai Rugby School. [1] [2] After graduating from Annan Gakuen High School in 2019, she enrolled at Morinomiya Medical College. [1] Her older brother Yuta, plays Prop for the Toshiba Brave Lupus Tokyo in the Japan Rugby League One competition. [2]
On 19 July 2019, she earned her first Test cap for Japan against Australia during their Australian tour. [2] She originally played in the backs but switched to the forwards at the recommendation of Head coach, Lesley McKenzie. [1] [2]
Kokaji joined Tokyo Sankyu Phoenix in 2021. She missed selection for the delayed Rugby World Cup that was held in New Zealand in 2022 due to injury. [2] She was part of the Tokyo Sankyu Phoenix side that won the 10th National Women's Rugby Football Championship in 2024. [3]
On 28 July 2025, she was named in the Japanese side to the Women's Rugby World Cup in England. [4] [5]