Thoroughbred racing bosses have had to split Saturday's two meetings over the weekend as the jockey ranks have been hit by a Covid outbreak.
The meeting which was to be held at Tauranga on Saturday has been moved to Sunday so jockeys who ride at Trentham can return north to also ride on Sunday.
The jockey ranks have already been weakened by a slew of suspensions and after three jockeys pulled out of riding at Ellerslie on Sunday citing illness, five more were unavailable to ride at Matamata today.
Jockeys take compulsory rapid antigen tests before all race and trial meetings but stewards and racing officials do not have the right to disclose those results, and only stand jockeys down if they return a positive.
Opie Bosson is one who has come out and disclosed he tested positive after a race at Pukekohe on Saturday, even though he had tested negative a few hours earlier.