[2] Collins was scheduled to fight Parviz Iskenderov for the WKN Australia title, during the Nemesis XI event.
[7] In June 2019, Collins fought Luis Cajaiba for the vacant WBC Muaythai Super Welterweight title.
[14] Collins made his first WBC Muay Thai World Super Lightweight (-63.5 kg) title, while simultaneously challenging for the inaugural Rebellion Muay Thai Super Lightweight title, against Jordan Godtfredsen at Rebellion Muaythai XXX on 18 November 2023.
[19] Collins faced Rungkit Bor.Rungrot for the vacant WMO World Super Lightweight (-63.5 kg) title at War on the Shore 24 on 29 June 2024.
[22] Collins faced Abraham Vidales in the quarterfinals of the GLORY RISE Featherweight Grand Prix, held on December 21, 2024, in Chiba, Japan.