Hirooki Arai, a dedicated athlete and office worker from Chiba, Japan, has made significant strides in the world of race walking. Arai began his journey in middle school in Nagano and pursued race walking seriously during his high school years. Initially interested in baseball, he switched to athletics due to his parents' opposition and was inspired by Japanese race walker Isamu Fujisawa.

| Season | Event | Rank |
|---|---|---|
| 2016 | Men's 50km Walk | B Bronze |
Arai's career is decorated with numerous awards. In 2017, he received the Best Athlete of the Year Award from the Japan Business Group Athletics Union. The same year, he was honoured with the Best Athlete Award at the Japan Association of Athletics Federations (JAAF) Athletics Awards.
In 2016, Arai was given the Sainokuni Sports Achievement Award and the Special Award of the President of the Saitama Sports Association. In 2015, he received an Excellence Award from JAAF. These accolades highlight his dedication and success in race walking.
Arai made history by becoming the first Japanese athlete to win a medal in the 50km race walk at the Olympic Games. He secured a bronze medal at the 2016 Rio de Janeiro Olympics. This achievement marked a significant milestone in his career.
However, Arai's journey at the 2016 Olympics was not without controversy. He initially finished third but was disqualified for making contact with Canadian race walker Evan Dunfee. Dunfee moved up to claim the bronze medal. Japan's counter-appeal was later upheld, reinstating Arai's bronze medal position.
Arai has faced challenges throughout his career, including three stress fractures to his femur. Despite these setbacks, he has continued to train and compete at a high level, demonstrating resilience and determination.
Outside of athletics, Arai enjoys driving. This hobby provides him with a way to relax and unwind from his rigorous training schedule.
Looking ahead, Arai aims to win a medal at future Olympic Games. His dedication to race walking and his track record suggest that he will continue to be a strong contender on the international stage.
Arai's journey from middle school athlete to Olympic medallist is a testament to his hard work and perseverance. His achievements have not only brought him personal success but have also contributed to Japan's standing in international athletics.
Hirooki Arai, a dedicated athlete and office worker from Chiba, Japan, has made significant strides in the world of race walking. Arai began his journey in middle school in Nagano and pursued race walking seriously during his high school years. Initially interested in baseball, he switched to athletics due to his parents' opposition and was inspired by Japanese race walker Isamu Fujisawa.