The debut season of The Ultimate Fighter (later designated The Ultimate Fighter 1) premiered on January 17, 2005. Sixteen mixed martial arts fighters (eight Light Heavyweights weighing from 186 to 205 lbs and eight Middleweights weighing from 171 to 185 lbs) were invited to participate in the show where they would reside together and train in two separate teams coached by UFC Light Heavyweight fighters Chuck Liddell and Randy Couture.