AOKI Masumi

World Relays

Year	Location	Shuttle Hurdles Relay
2019	Yokohama, JPN	2nd (55.59)

Asian Games

Year	Location	100m Hurdles	4 x 100m
2018	Indonesia	5th (13.63)	5th (44.93)

Asian Championships

Year	Location	100m Hurdles
2019	Doha, QAT	3rd (13.28)

World Athletics Continental Tour - Ten best performances since 2020

Rank	Year	Event	Competition	Location	Result
2	2021	100m Hurdles	World Athletics Continental Tour	Tokyo, JPN	13.06
2	2020	100m Hurdles	World Athletics Continental Tour	Tokyo, JPN	13.09

World Challenge - Ten best performances since 2020

Rank	Year	Event	Competition	Location	Result
6	2018	100m Hurdles	World Challenge	Osaka, JPN	13.51
7	2017	100m Hurdles	World Challenge	Kawasaki, JPN	13.43
9	2019	100m Hurdles	World Challenge	Osaka, JPN	13.37

Legend
SF - Semifinal, QF - Quarterfinal, 1R - 1st Round, Qual. - Qualification, QR - Qualification Round, DNF - Did Not Finish, DNS - Did Not Start, DQ - Disqualified, NM - No Mark, [Relay athlete without time] - Did not run in final

Athlete, Office Worker

Physical Education - International Pacific University, Okayama, JPN

Japanese

The 77 Bank [Japan]

Ken Arai [club], JPN

In June 2021 she was troubled by a left hamstring injury and was unable to compete at the 2021 Japan Championships that month. (nikkansports.com, 24 Jun 2021)

In 2020 she suffered from a series of injury problems including Achilles tendinitis, a stress fracture in her rib, a shoulder subluxation [partial dislocation] and several muscular injuries. (Twitter profile, 15 Jan 2021)

She dislocated her left shoulder in a fall after passing the finish line in the 100m hurdles at the 2018 Japan Championships in Yamaguchi, Japan. She finished first in the event but required three months of recovery. (yahoo.co.jp, 10 Jul 2018)

In 2017 she tore a muscle in her left thigh. (sportsbull.jp, 10 Jul 2018; hochi.co.jp, 26 Sep 2017)

She took up the sport in grade five of primary school in Okayama, Japan. She began focusing on the hurdles in grade 12 of high school. (sanyonews.jp, 01 Apr 2017; olympicchannel.com, 13 Feb 2019; hochi.news, 16 Apr 2019)

To compete at the 2020 Olympic Games in Tokyo. (sportsbull.jp, 10 Jul 2018)

She received an Athletic Award at the 2011 Sanyou Newspaper Athletic Awards. (soshigakuen.ed.jp, 31 Jan 2011)