Ones Basketball League is a first-ever elite competition that will celebrate the most skilled one-on-one players on the planet. Ones Basketball Association is a first-ever elite competition that will celebrate the most skilled one-on-one players on the planet. Beginning in April, seven cities across the United States will host a two-day, regional, 32-player round-robin knockout tournament with athletes aged 18 and up who are currently not under an NBA contract and have not been on an active NBA roster for more than 164 games (equivalent to two NBA regular seasons). The participants will come from a combination of open-sourced video submissions and the advice of basketball insiders. The aim is to welcome both best-in-class talent and players who may still be under the radar of most basketball fans. The inaugural events this year will feature only men, and women will be welcomed as equal participants as soon as 2023.