[9] On October 3, 1921, Kallio defeated Jack Reynolds to win the National Wrestling Association's World Welterweight Championship.

[12] Kallio later proved his incredible condition when he wrestled Henry Jones in a three-hour match before winning the bout.

[14] Just like when he held the Welterweight title, Kallio travelled the United States facing local Middleweight competitors.

[12][15] By the late 1930s Kallio was in his fifth reign as Middleweight champion but the lower weight divisions became less and less popular in the United States.

[16] Kallio defended and lost both the NWA and the Mexican version of the World Middleweight title to Octavio Gaona on February 19, 1939, which was the last time he would hold a wrestling championship.

[5] He was also involved in operating a roller skate rink and Finnish-style steam baths (sauna).