Bare Knuckle Fight of the Year 2023? Mark "The Shark" Irwin v. Julio Tanori for BYB Lightweight Belt

BYB Extreme Fighting Series, the modern-day originators of bare knuckle fighting in the US made its Colorado debut at BYB 22 Rocky Mountain Brawl on Saturday, December 2 at the Stockyards Event Center in Denver. The historic card was headlined by three title fights including champion Mark “The Shark” Irwin defending his BYB Lightweight title against 21-year-old phenom Julio Tanori inn one of the most intense and bloody battles of the year.