Tuesday's meeting at Newcastle has been abandoned due to a waterlogged track.
A total of 150 millimetres of rain fell at the course in April leaving the ground waterlogged and unraceable in places.
Further rain is now forecast over the weekend so clerk of the course James Armstrong has made an early decision to call off the fixture.He said: "We had a look today and we had our course inspector here and we are still a long way off being raceable.
"We've got a forecast of further rain, upwards of another half an inch, in the next two or three days.
"We are fighting a losing battle."
The British Horseracing Authority has announced an additional fixture at Southwell to fill the gap.
Entries for all races must be made by noon on Saturday, May 5, with declarations to run also made by 10am on Sunday, May 6.