New Zealand Thoroughbred Racing has suspended its senior handicapper Dennis Quirke for betting on races.

Quirke was immediately suspended from domestic handicapping duties when the betting activity was identified by the Racing Integrity Unit on Thursday last week.

He has also been charged with breaching the rules of racing by the RIU.

"The integrity of thoroughbred racing is of the utmost importance to NZTR and we must have a zero tolerance to matters of this nature," NZTR chairman Alan Jackson said.

The RIU charges involve 14 bets, totalling $627, placed by Quirke on five New Zealand thoroughbred races between August 8 and October 26.

The largest individual bet was a $55 fixed-odds win bet on the favourite in a set weight maiden race.

In addition to suspending Quirke, NZTR immediately conducted an independent rating review of all horses in the five races on which he placed a bet.

Greg Carpenter, head of handicapping for Racing Victoria, confirmed that all pre-race and post-race ratings were in accordance with the parameters of the NZTR handicapping guidelines.