Four teams took part in a series of 20-minute each way games at the soon-to-be Wessex League club’s Lederle Lane HQ.
Fleetlands and Locks Heath ended level on points, but the hosts were declared the tournament winners due to beating Locks 2-1 in their fixture.
Fareham Town and a Portsmouth League side - the latter put together by ex-Fleetlands first team boss Rich Bessey - were the other teams involved.
Kenny Evans (Fleetlands), Paul Clark (Locks) and Bjay Green (Fareham) were the other managers.
There was also an official unveiling on the day of a memorial bench in honour of Mason, who passed away last July aged 81 - just days after the first vets tournament held in his name took place.
Mason had held a variety of roles in his 30-year association with Fleetlands, also helping to found the Hampshire Premier League in 2007.