Sport betting's top executive left his $1 million job for "personal and family" reasons, saying the commute between Auckland and Wellington affected his health and family life.
The resignation of NZ Racing Board chief executive Chris Bayliss caused disappointment and surprise in the industry this week, coming just 22 months after he started.
Amid calls for explanations, Mr Bayliss said he had enjoyed the job and left behind "great talent" and an "excellent executive team" to continue the work.
"My decision to resign has been made for personal and family reasons and I am looking forward to pursuing further opportunities," his statement said. "The weekly commute between Auckland and Wellington is taking too great a toll on my health and family life and I have therefore decided I need to correct this balance in my life."
Board chairwoman Glenda Hughes, one of the country's best public relations operators, said she had been talking to Mr Bayliss about his departure for "a while".