In season 2015–16 Troon F.C. absorbed Troon Thistle's Under-17s as they made the step up to Under-19 level, under the tutelage of Derek Cowan & Henry McAvoy and in June 2017 Justin Brown was appointed Head Coach to oversee the transition for the new intake of players for the 2000 born players. Jamie McCulloch was appointed in June 2018 to head up the new-look 2000-aged team before introducing the 2001 age group, before he & Jonny McTear departed with all their players for Irvine Meadow in the summer of 2020.