Okawa started training wushu at the age of ten. He originally just practiced taijiquan, but eventually switched to modern changquan and later to jianshu and qiangshu in 2012.[1] Okawa's international debut was at the 2013 World Wushu Championships in Kuala Lumpur, Malaysia, where he became the world champion in men's jianshu.[2][3][4] He also won a silver medal in qiangshu. Two years later, Okawa competed in the 2015 World Wushu Championships and won a bronze medal in qiangshu.[5] His high placements in changquan and jianshu qualified him to compete in three events at the 2016 Taolu World Cup in Fuzhou, China, where he won a gold medal in qiangshu and a silver medal in jianshu.[6] That same year, he also won a silver medal in jianshu at the Asian Wushu Championships in Taoyuan, Chinese Taipei.[7] A year later, Tomoya suffered a major ACL injury during training,[1] but was able to compete and place high in the 2017 World Wushu Championships.[8] He then went on to win silver medals in jianshu and qiangshu at the 2018 Taolu World Cup in Yangon, Myanmar.[9]
