Initially Ravenna, Norton, Springfield, East Canton, and Coventry accepted invitations to join the new league beginning in 2005.
[11] Later in the year, following news that the Western Reserve Conference (which had just lost member Ravenna) would be losing at least two additional member schools (leaving the South Division with just four teams), Kent Roosevelt left the WRC and accepted an invitation to join the new league effective in 2005 after initially choosing to remain in the WRC.
[14] East Canton announced in February 2011 that they would leave the PTC following the 2012–13 sports season to join the Inter-Valley Conference.
[16] The PTC heard presentations from four area high schools (Barberton, Northwest, St. Thomas Aquinas, and Lake Center Christian) in May 2011, prior to the announcement that Windham would also be leaving the conference in 2013.
[17] Rather than expand, however, the PTC chose to stay at 14 teams, and Streetsboro moved back to the County Division for the 2013–14 school year.
[19][20] Cloverleaf High School announced in December 2013 it would leave the Suburban League for the Portage Trail Conference in 2015.
[2] In response to this, Crestwood (then the largest school in the County Division) announced it was considering leaving the PTC for the Chagrin Valley Conference,[25] which was made official by a board of education vote on July 9, 2019.
[26] Next, Valley Christian announced it was leaving after the 2019–20 school year to join the Eastern Ohio Athletic Conference, with Garfield announcing it was leaving after the 2020–21 school year to join the Mahoning Valley Athletic Conference (MVAC).
Southeast High School announced in November 2023 plans to leave the PTC after the 2023–24 school year to join the Mahoning Valley Athletic Conference and compete in the MVAC Grey division along with former PTC member Garfield.
[28] The PTC has championships in 18 different sports, the most recent additions being the boys' and girls' bowling tournament in 2007 and regular-season competition in 2008.
In football, baseball, basketball, soccer, softball, and volleyball, the division champion is determined by the results of regular-season play.
Other sports—cross country, golf, bowling, track and field, tennis, and wrestling—weigh the regular-season and season-ending conference tournaments equally as part of determining the season's overall champion.