The G League is comprised of 30 teams, 28 of which are affiliated with an NBA franchise. The two others – the Mexico City Capitanes and G League Ignite – operate independently.

The G League plays a 50-game regular season, all of which takes place within the span of the NBA regular season. At the end of the regular season, the top six teams in each conference qualify for the postseason.

A G League team's roster can have up to 10 players on standard G League contracts with addition slots for two Two-Way players and assignment players from parent teams. A team's active roster may expand to up to 13 players if its parent club assigns players from the NBA roster.

Two-Way players are players signed by the NBA parent team that can play up to 45 games with the NBA team, while spending the rest of their time with the G League affiliate. Two-Way players can be NBA players with four years of service or less.

Assignment players are NBA players with less than three years of NBA service that can play with the NBA G League affiliate for an unlimited amount of games throughout the season while still remaining on the NBA roster. That player remains under NBA contract and the assigning NBA team has the exclusive rights to recall that player at any time. Players with more service time sometimes use assignments as a chance to rehab from an injury with the G League affiliate as well.

The primary means of acquiring players on a G League roster are designating Two-Way and affiliate players from the parent team, signing players through the available player pool, drafting a player in the G League Draft or signing a player from a local tryout.

NBA teams can designate up to four players that they cut during training camp as “affiliate players,” meaning those players will join that team’s NBA G League affiliate (should the players choose to sign into the NBA G League). These players are signed under contract with the league rather than the team, meaning they are technically free agents who can be called up to any of the 30 NBA teams.

The available player pool is made up of players that sign into the NBA G League after the season begins. Teams are placed in a waiver order that rotates after a team makes an acquisition through the season.

The G League Draft is generally the final step in building out a G League roster. The draft takes place at the season and is three rounds long. Each team has three draft picks that they can trade or use to select a player. Like the NBA, future picks can also be traded.

The league signs 100-plus players each year to join the pool of draft-eligible prospects. They include college players who went undrafted in the NBA Draft, international prospects, and players who were recently waived by NBA teams following training camp. Players must be 18 years old to be eligible for the NBA G League Draft.

Local tryouts can be held on a yearly basis by each NBA G League franchise and teams are eligible to invite up to four players from their tryouts to training camp. In recent years, the Go-Go have signed Isaiah Armwood, Devin Sweetney, Maxie Esho, Jamall Gregory, Pat Spencer, Kyree Walker and Bryce Wills from local tryout.

Players on G League contracts must re-sign with the G League each year they participate in the league, but their returning rights will remain with the last team they played for within the last two seasons. For example, if a player plays for the Go-Go one season, plays overseas the next and then returns to the G League, the Go-Go would have “right of first refusal” of his rights. Player’s returning rights can be traded our renounced by the team that controls them.

Call-Ups are when a player on a G League contract is signed by an NBA team. G League-contracted players can be signed to two-way deals, 10-day contracts, or standard NBA contracts. During the 2021-22 NBA season, the Wizards called up five players from the Go-Go: Jordan Goodwin, Jordan Schakel, Craig Sword, Jaime Echenique and Greg Monroe.