The Ironheads are a relatively new team. The 2006 season was their fifth in the league and they have shown substantial growth, gaining access to the playoffs in their past three seasons.
Their first ever OLA Junior "B" game took place on April 20, 2002 against the Onondaga Warriors (now of the Iroquois league) -- a 20-9 loss. Their first ever victory came on April 28, 2002 against the Nepean Knights. In their fourth ever game, they beat the Knights by a score of 9-5.
They have yet to win a playoff round.
In 2010, the Ironheads moved to Ajax and play out of the Ajax Community Centre while retaining the "Markham Ironheads" name.