On September 5, 1910, he defeated Peanuts Sinclair in a thirteen-round knockout at the Fair Grounds in Ogden, Utah on what was then Labor Day. The fight was billed as an "Inter-Mountain Featherweight Championship", though Sinclair was not a featherweight of great national prominence. Reagan worked out with the punching bag, skipping rope, medicine ball, and sand bag. On October 7, 1910, he lost to Gene McGovern in the Fairgrounds in Ogden, Utah, in an eleventh round disqualification. The original call was a knockout by Reagan, but upon closer examination, the Referee Tom Painter ruled that Reagan had hit McGovern below the belt. After consulting with three physicians who examined McGovern, Painter made the binding ruling and awarded the bout to McGovern, reversing the rule of a knockout by Reagan. A crowd of 1500 witnessed the vigorous bout that saw Reagan dominating in every round. McGovern was counted out after he had laid down after the final blow. The bout was to have been for the Inter-Mountain Featherweight Championship.
Loss to "Mexican Joe" Rivers On February 22, 1911, he lost to
Mexican Joe Rivers by a technical knockout in the thirteenth round of a scheduled twenty. Reagan took a "terrific beating" and was knocked down four times prior to the thirteenth round when he was knocked down twice more by Rivers before the fight was called by Referee Eyeton. The bout took place in the Arena in
Vernon, California, considered in the city of Los Angeles. The referee was Charles Eyton. Rivers would contend for the World Lightweight Title on July 4, 1913 against Willie Ritchie. He would fight many of the top feather and lightweight boxers in the country. He fought Monte Attell again in a draw bout on July 25, 1911, at the Buffalo Athletic Club in Sacramento, California. He met Germaine again on July 24, 1912 in
Price, Utah, in a 20-round draw. Johns ended the bout with one eye badly swollen and the other entirely shut. Suffering, he had his seconds stop the bout forty-five seconds into the fourteenth round. Reagan was described as the aggressor throughout the bout, but not a single knockdown of either boxer occurred in the fight. Between October 1913 and February 1915, he fought Sally Salvadore three times, winning in each bout. ==Decline of boxing career==