After establishing West End Boxing Gym, Harry & Maryanne Costi then looked to develop Coorparoo Boxing Gym into one of Brisbane's best training facilities in 2010.
The Gym acts as a second home to many people with competition boxers, fitness instructors, students, blue and white collar workers, mothers and many others working out next to each other in a friendly environment. The Gym also hosts off season training for many local sports clubs.
Well known boxers who have trained at both West End and Coorparoo gyms include: Craig Petersen, Stephen Pitt, Mark Burgess, Ricky Thornberry, Sam Soliman, John Mugaby, Doug Sam, Billy Johnson, Anthony Mundine, Brett W Smith, Tyrone Tongia, Billy Dib, Paul Flemming, Brian Jansenn, Daniel Rowsell, Paul and Nathan Briggs, Mr Johnny Lewis, former world amateur champion Galib Jafarov from Kazakhstan and the entire US amateur team from the 2001 Goodwill Games that were held in Brisbane.
Other popular sports people to use the gyms: Cricketers Michael Kasprowicz, Wade Seccombe, Rugby League players Darren Lockyer, Mal Meninga, Justin Hodges, Wendell Sailor Rugby Union players Totai Kefu, Sam Cordingley, Berrick Barnes and Swimmer Suzie O'Neill.