On July 3, 2021, a 29-year-old Tugstsogt Nyambayar (12-1, 9 KOs) and a 24-year-old American boxer Chris Colbert (15-0, 6 KOs) met in the ring in a super-featherweight bout.
Nyambayar came in to the fight on a 1-fight win streak with a 69% KO rate, and was fighting after a gap of 9 months and 14 days. Colbert was on a 15-fight win streak with a 40% KO rate, and fighting after a layoff of 6 months and 21 days.
Chris Colbert defeated Tugstsogt Nyambayar via unanimous decision in the 12-round super-featherweight fight. Colbert improves his record to 16-0, while Nyambayar adds a loss to his record at 12-2.
On February 8, 2020, a 27-year-old Tugstsogt Nyambayar (11-0, 9 KOs) got a shot at the featherweight WBC title held by 31-year-old American boxer Gary Russell Jr. (30-1, 18 KOs).
Nyambayar came in to the fight on a 11-fight win streak with a 81% KO rate, and was fighting after a gap of 1 year and 13 days. Russell Jr. was on a 6-fight win streak with a 58% KO rate, and fighting after a layoff of 8 months and 21 days.
Gary Russell Jr. defeated Tugstsogt Nyambayar via unanimous decision and successfully defended his WBC featherweight title. Russell Jr. improves his record to 31-1, while Nyambayar adds a loss to his record at 11-1.