They play in the Major Series Lacrosse league where under the current format, they compete in 20 regular season games (10 at home) from May through July and playoffs beginning in August and ending with the Mann Cup in September.

Within 3 years of their founding, the Ajax Rock finished first in the OLA Senior "B" League and reached the finals against the Owen Sound Woodsmen.

[3] They would finish the 2010 campaign with a 3-13-0 record[4] and would be swept by the Six Nations Chiefs in the first round of the playoffs.

[5] In 2013, owner Rob Roche sought approval for the team to relocate from Ajax to Oakville sighting tiny crowds and a lack of competitiveness as key reasons for being unable to secure bigger talent to the club.

MSL and the OLA approved the move and the team relocated West of Toronto.