The Johnstown Riverhawks was a professional indoor American football team based out of Johnstown, Pennsylvania. A charter member of the American Indoor Football Association (AIFA), it played its home games at Cambria County War Memorial Arena.
 The Riverhawks began play in 1999 as the Topeka Knights of the original Indoor Football League. The team missed the playoffs during its inaugural season, finishing third in the Northern Division at 6-6. During its second season, the team changed ownership and became the Topeka Kings. It finished with a much better record, going 10-4 and winning the Western Conference, Southern Division championship. During the playoffs, it defeated the Black Hills Machine during the quarterfinal round before losing to the Bismarck Blaze in the semifinals.
 After the season, the team moved to Knoxville, Tennessee, became the Tennessee ThunderCats, and moved to the Indoor Professional Football League. 
 It then won the league championship during its first year. After the IPFL folded, the ThunderCats moved to the NIFL. During its tenure in the league, the team had a degree of success in 2002, but considerably less as the Tennessee Riverhawks in 2003.
 In 2004, while it was the Greenville Riverhawks, this team's ownership folded after three games, and moved to Lancaster, Pennsylvania, where it played its remaining games. It was subsequently re-founded by Andrew Haines, owner of the Atlantic Indoor Football League. The team was purchased by Brian Schwelling of Atlanta, Georgia in February 2005. Schwelling operated the team successfully until September of that same year when it was sold to Michael Dawson. Schwelling was successful in bringing the Riverhawks to the semifinal game in the team's inaugural season.
 On March 4, 2006, the team won its first game of its second season on the road 21-14 against the Steubenville Stampede, which made AIFL history by becoming the lowest scoring game in the league's then two-year existence.
 On March 26, 2006, the Riverhawks lost the AIFL's very first overtime game 41-38 against the Reading Express at home.
 In the 2008 season, the Riverhawks ended its contract with the Johnstown War Memorial.
 AIFL owner Andrew Haines announced he was relaunching the defunct AIFL as the Ultimate Indoor Football League during the 2011 season and would be bringing back Johnstown in the process. The revived team was to bear the name "Johnstown Generals."
 Week 1 – Tennessee ThunderCats 52, Trenton Lightning 25
 Week 2 – Tennessee ThunderCats 34, St. Louis Renegades 28
 Week 3 – Tennessee ThunderCats 42, Boise Stallions 29
 Week 4 – bye
 Week 5 – Tennessee ThunderCats 39, Trenton Lightning 26
 Week 6 – Tennessee ThunderCats 41, Trenton Lightning 24
 Week 7 – Tennessee ThunderCats 40, St. Louis Renegades 23
 Week 8 – Omaha Beef 72, Tennessee ThunderCats 50
 Week 9 – Tennessee ThunderCats 47, St. Louis Renegades 44
 Week 10 – Omaha Beef 56, Tennessee ThunderCats 29
 Week 11 – Omaha Beef 54, Tennessee ThunderCats 32
 Week 12 – Boise Stallions 40, Tennessee ThunderCats 38
 Week 13 – Tennessee ThunderCats 61, Omaha Beef 34
 Week 14 – Tennessee ThunderCats 35, St. Louis Renegades 10
 Week 15 – bye
 Week 16 – Tennessee ThunderCats 53, Boise Stallions 9
 Week 17 – bye
 Week 18 – Tennessee ThunderCats vs. Boise Stallions – Cancelled
 Week 19 – Tennessee ThunderCats 43, St. Louis Renegades 27
 IPFL Championship – Tennessee ThunderCats 47, Omaha Beef 38