is an amateur Japanese Greco-Roman wrestler, who competed in the men's featherweight category. He won two gold medals in his division at the 2009 Asian Wrestling Championships in Pattaya, Thailand, and at the 2010 Asian Games in Guangzhou, China, defeating India's Jogender Singh and pinning Kyrgyzstan's Kanybek Zholchubekov, respectively. Hasegawa is also a member of the wrestling team for Fukuichi Gyogyo Co. Ltd., and is coached and trained by Hiroshi Ohta.
Hasegawa represented Japan at the 2012 Summer Olympics in London, where he competed in the men's 55 kg class. He defeated Belarus' Elbek Tazhyieu in the preliminary round of sixteen, before losing out the quarterfinal match to Danish wrestler and two-time Olympian Håkan Nyblom, who was able to score four points in two straight periods, leaving Hasegawa without a single point.