She won the bronze medal in the 100 meters women's relay race along with Merlin K Joseph, Srabani Nanda and Dutee Chand in the 22nd Asian Athletics Championships which concluded on July 9, 2017.

[3] She won the silver medal in women's 4x100m relay race along with N. Shardha, Sonal Chawla and Priyanka in the National Open athletics championships 2018 where they represented the Indian Railways.

[4][5] Himashree Roy timed 11.60 seconds to set a record in women's 100 metres on 5 August 2018 in the 68th State Athletics Championships, at the Salt Lake Stadium while representing the Eastern Railway Sports Association (ERSA).

[7] Himashree Roy, MG Padmini, Srabani Nanda and Gayathri Govindaraj won the bronze medal for women's 4x100m relay race in the second leg of the 2015 Asian Grand Prix Games, held in Thailand.

[8][9] She also won the gold medal in the women's 4×100 metre relay with teammates Dutee Chand, Srabani Nanda and Merlin K Joseph while representing the Indian Railways in the 55th National Open Athletic Championship, 2015.