The GB Masters Basketball Association (formerly British Masters) was established in 1991 and coordinates the largest annual masters basketball weekend tournament for male and female players aged 35+ in the UK. The tournament now hosts around 700 athletes each year.

In 2024, in partnership with British Wheelchair Basketball (BWB), the tournament was expanded to include wheelchair athletes.

In parallel, an International Masters programme was created in 2019, sending 16 age group teams to various World and European Championships and winning 21 international medals to date. Recognising the significant benefits on mental and physical wellbeing of the programme

An International GB Masters Wheelchair team was created in 2025, with the aim of encouraging other countries to follow-suit and create an inclusive global masters community. Since it's inception, we have seen participation numbers grow month on month and the effect on players' mental and physical wellbeing has been incredibly positive. 

All In Brand Ltd was established in 2020 with a mission to serve and bring together the basketball community. Their roots are deeply tied to local sports events, starting with the South Coast Summer Classic tournament in 2017. This was followed by the launch of the All In Summer League in 2020 to help players safely return to the court and stay active following the pandemic lockdowns.

Inspired by these community events and driven by their foundational sporting values of Discipline, Passion, Dedication, and Hard Work, co-founders Mark Jackson and Oliver Marsh formed the business to design and deliver high-quality, fully custom basketball kits and team apparel. They have since expanded that service to host dedicated club shops for teams, and were officially incorporated as All In Brand Ltd in May 2022.

Today, through their website, they continue to provide teams with top-tier bespoke sportswear and a simplified apparel ordering processes.