In March 1986, "Fearless", who was (14-13) at the time, took on Roger Mayweather (23-3) at the Sahara Hotel in Las Vegas, Nevada shocking the hotel by knocking out Roger in the 6th round for a TKO win.
He later defeated former champion Freddie Pendleton and in 1995 challenged Mexican legend Julio César Chávez for the WBC Light Welterweight Title, losing a unanimous decision.
Shortly after a TKO in 10 over the popular Jorge Páez in 1992, Ruelas earned a shot at IBF Lightweight Title Freddie Pendleton, overcoming an early knockdown and winning by unanimous decision.
Freddie King | Freddie Mac | Pendleton, Oregon | Freddie Mercury | Freddie McGregor | Pendleton | Pendleton Ward | Freddie Jones | Freddie Foxxx | Pendleton, South Carolina | Marine Corps Base Camp Pendleton | Freddie Webb | Freddie Starr | Freddie Green | Pendleton Round-Up | Nat Pendleton | Freddie Lewis | Moses Pendleton | Joey Pendleton | George H. Pendleton | Freddie Slack | Freddie Prinze, Jr. | Freddie Prinze | Freddie Little | Freddie Lee Peterkin | Freddie Goodwin | Freddie Fox | Freddie Cox | Freddie Coleman | Freddie Blassie |