West Michigan Ironmen

American Indoor Football (Morris)

In July 2015, it was announced that Terrence Williams was awarded an expansion team in American Indoor Football (AIF) for the 2016 season.^[5] After a "name-the-team" contest, the nickname Ironmen was chosen for the expansion franchise.^[6]

The Ironmen dropped their first game of the season, but would win every game following that, en route to a berth in the AIF Championship Game.^[7] The Ironmen would lose the AIF Championship Game to the Columbus Lions, 32–74, after the game was cut short by multiple altercations leading the Ironmen to leave the field citing safety reasons.^[8]

On July 18, 2016, the AIF announced it was ceasing operations leaving the team without a league.

Champions Indoor Football and Indoor Football League

The Ironmen announced on September 26, that it was joining Champions Indoor Football (CIF) for the 2017 season. The Ironmen went 4–8 and missed the playoffs.

On September 12, 2017, the Indoor Football League announced it had added the West Michigan Ironmen, as well as the Bloomington Edge, from the CIF.^[9] The CIF then attempted to sue the IFL, Edge, and Ironmen for leaving the CIF after the two teams had already signed league affiliation agreements with the CIF for the 2018 season.^[10] While the CIF did drop the lawsuit against the IFL, it filed for an injunction against the Edge and Ironmen teams from participating in the IFL for breaking the terms of their signed affiliation agreements. A temporary injunction from participation against the two teams was granted on January 31, 2018, with the judge citing that both teams had been bribed into breaking their contracts with the CIF.^[11][12]

Both teams participation in the IFL was suspended for the 2018 season, while still considered members,^[13] and Bloomington announced both teams would play independent schedules.^[14] As part of the injunction, the Ironmen cannot play any games for as long as the 2018 CIF season lasts.

Midwest Professional Indoor Football

On March 3, 2018, owner Terrence Williams then posted on social media that he had sold the team to another local group and the Ironmen would be participating in the semi-professional regional Midwest Professional Indoor Football (MPIF) for the 2018 season.^[3] The Ironmen went undefeated at 3–0 through the MPIF season with several teams folding during the season. On April 21, 2018, the first-seed Ironmen beat the second-seed and defending MPIF champion Midway Marauders 68–44 at home to win the MPIF championship.

American Arena League

Two days after winning the MPIF championship, the Ironmen were accepted to return to the CIF for the 2019 season.^[4] Upon the release of the 2019 season schedule, the Ironmen were not listed as members.^[15]

On January 18, 2019, the Ironmen posted on social media that it had joined the American Arena League (AAL) for the 2019 season along with the remaining teams from the MPIF as a Midwest Division.^[2][16] The Ironmen won the division title over the Indianapolis Enforcers, the only other team in the division to finish the season, before losing the league semifinal game to the West Virginia Roughriders.

The 2020 season was cancelled due to the onset of the COVID-19 pandemic with no games played by any team in the league. The following season, the team played four games with several cancellations by other Midwest Division teams. The AAL chose not to hold a 2021 championship playoff, but stated each division would have their own champion. The Ironmen planned to hold a division championship game on June 5, 2021, but no opponents committed to playing and the team was named the division champions.^[17]

Great Lakes Arena Football League

For the 2023 season, dissatisfied with the options for regional indoor leagues in the Michigan area and seeking a more stable foundation to allow the team to schedule home games with more advance notice than they had, the Ironmen established their own league, the Great Lakes Arena Football League,^[18] which was renamed (presumably for trademark concerns) the Great Lakes Arena Alliance before the start of the 2023 season^[19] and Great Lakes Arena Football in 2024. As of 2025, the GLAF is inactive, but the league is still owned and operated by the Ironmen.

American Indoor Football (Clark/Montero/Foster)

On Christmas Day, December 25, 2024, the Ironmen announced on their social media pages that they were returning to the revamped American Indoor Football starting in 2025. This incarnation largely consists of the Ironmen and two teams, the Cedar Rapids River Kings and Coralville Chaos, whose co-owner Dominic Montero had an acrimonious split with the previous AIF the previous season,^[20] a dispute that had led the rest of the league's teams to leave for the National Arena League and Montero to lay stake to the AIF brand for his league.

The Ironmen trounced both Montero-owned teams in the 2025 AIF's first two games, defeating Coralville 75-7 on February 14^[21] and shutting Cedar Rapids out 55–0 eight days later.^[22] Then, after playing each team again as well as winning their out of league games, the Ironmen hosted the 2025 AIF Championship Game defeating the Chaos 76-24 to win their third national championship and finished the season with an unblemished 7-0 record. As of 2026, Montero is no longer an owner of the league (he would be fully expelled in late March) as Larry Clark is now joined by new commissioner Terrence Foster with the Ironmen setting the standard for the league. On May 4th, the AIF would declare the Ironmen the 2026 champions due to venue conflict with the Muskegon Lumberjacks and various logistical constraints with the Cedar Rapids Titans. The Ironmen went 5-0 while the Titans went 3-3 on the season.^[23] Shortly afterward, head coach Terry Mitchell resigned his position. On May 22nd, Mitchell was named AIF Coach of the Year.

The Ironmen announced its takeover of the AIF following the 2026 season.^[24]

Season-by-season results

Head coach records

Note: Statistics are correct through the duration of the 2026 season.