Joining Redfield in the 1920 South Dakota League as charter franchises were the Aberdeen Boosters, Huron Packers, Madison Greys, Miller Climbers, Mitchell Kernels, Sioux Falls Soos and Wessington Springs Saints teams.
Playing under managers Ollie Pickering and Harry Halstead, Redfield finished 14.0 games behind the first place Mitchell Kernels, who won their first of three consecutive championships.
Redfield ended the season with a 47–46 record, playing under managers Henry Wingfield and Harry Halstead and finished 15.5 games behind the first place Mitchell Kernels in the league standings.
[15][16] Redfield was referenced to have played select Sunday minor league home games at Armandale Park.
Still in use today as a public park, the ballpark was located at 391st Avenue & 151st Street in Mellette, South Dakota.