CRADLEY’S National League match at Leicester was abandoned after two races.
Anchor Logistics Heathens rider Tom Spencer came to grief in the first running of Heat 3 and required medical attention followed by a trip to hospital.
The meeting was the second half of a double-header and it was confirmed that the ambulance would not be able to return in time for the match to be completed within the curfew.
Leicester led 8-4 at the time of the stoppage thanks to a 5-1 in Heat 2, but the match will have to be re-staged at a later date.
Heathens are back in action on Monday when they face Plymouth at Monmore Green.