Team Logo. The Springfield Capitals were a team in the Frontier League. They won the league championship in 1996 and 1998. In 2002 they moved and became the first Rockford RiverHawks. Retrieved from "https://prosportsteams.fandom.com/wiki/Springfield_Capitals?oldid=12039" Categories: Former FL Teams Teams in Illinois Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.