NBA Official

NBA Referee Assignments

April 22, 2021

Referee assignments are posted at approximately 9:00am ET each game day.

Game Crew Chief Referee Umpire Alternate
Phoenix @ Boston Bill Kennedy (#55) Jacyn Goble (#68) Brandon Adair (#67)
New Orleans @ Orlando Courtney Kirkland (#61) Scott Wall (#31) Andy Nagy (#83)
Philadelphia @ Milwaukee Kevin Scott (#24) Mark Lindsay (#29) Brett Nansel (#44)
Detroit @ San Antonio John Goble (#30) Ben Taylor (#46) Justin Van Duyne (#64)
Charlotte @ Chicago Josh Tiven (#58) Mitchell Ervin (#27) Leroy Richardson (#20)
L.A. Lakers @ Dallas Ken Mauer (#41) Derrick Collins (#11) Derek Richardson (#63)
Replay Center: JT Orr, Tyler Ford

G League Referee Assignments

April 22, 2021

Referee assignments are posted at approximately 9:00am ET each game day.

Game Crew Chief Referee Umpire Alternate

Crew Chief Position

  • Proficient in Referee and Umpire positions
  • Leader of the crew, on and off the floor
  • High-level play calling, partnering skills, and tools for handling any game situation, including interpersonal communication
  • Understands the importance of extending into their secondary area of coverage, with accuracy

Referee Position

  • Proficient in all Umpire position requirements
  • Effectively the glue for a crew through consistency, teamwork, and communication - makes partners better by carrying a larger portion of the crew’s load than an Umpire
  • Capable of handling some plays in secondary area of coverage
  • Ability to recognize and appropriately manage shifts in game conditions (intensity, emotions, decorum, style of play etc.)

Umpire Position

  • Aggressively and accurately calls plays in the primary area of responsibility
  • Responsible for basic mechanics including rotations, positioning and clock and team foul awareness
  • Strong rules knowledge coupled with contributions to in-game discussions/issues regarding adjudication