Adelaide coach Joey Wright has been fined $2500 by the NBL for breaking its code of conduct after he claimed he had been the victim of racial abuse by a referee.

After being evicted from the court in Saturday's 88-87 loss to New Zealand, Wright argued referee Brett Hogan should be barred from officiating 36ers' matches based on claims he made that he had been racially abused by him in 2011.

However the NBL reasserted on Monday that while Hogan had been suspended six years ago in relation to an incident involving Wright, an investigation found racial vilification had played no part in it.

"The NBL's investigation at the time into that incident did not result in any findings in relation to any remarks or slurs of a racial nature," the NBL said in a statement.

Wright was the coach of the now-defunct Gold Coast Blaze at the time of the incident.

The NBL has changed management hands from Basketball Australia since then, and officials have spent the past two days pouring over the reports from the 2011 investigation.

Photo by Morne de Klerk/Getty Images

Wright has also been slapped with a one-game suspended sentence until the end of next season as a result of the comments, and AAP understands he will not be given an avenue of appeal.

"The NBL does not condone nor tolerate bullying, harassment or abuse of any form and treat the inaccurate reporting of this incident as being irresponsible on the behalf of coach Wright," the NBL said.

"It has had a significant negative impact on the league and the referee involved."

Saturday's comments came after Wright believed the Breakers should have been slapped with a shot clock violation midway through the second quarter.

He argued his case with the referees only to be called for a technical foul, before he then copped a second technical foul and was evicted from courtside after he continued to plead his case.

Wright's 36ers are assured of top spot on the NBL ladder with one round of the regular season to play.