“But unfortunately the rain overnight has saturated the track. We've got water lying on the track a couple of metres up from the pole line. It would take several days of good weather for it to dry out.
“Tomorrow was to be a standby day to run the event, but with the forecast the way it is we have been forced to postpone the meeting.”
McGrory said it was very disappointing for the competitors who had taken the time to get here for it.
“But we cannot do much about the wet weather, which is affecting pretty much the whole country.”
A date to rerun the championships would be set as soon as possible, he said.
“We will have to work in with other tracks to see where we can fit it into the racing schedule.”