Racing at Chelmsford on Tuesday night was abandoned after a power failure caused a virtual blackout during the running of the third race.
The floodlights at the Essex circuit went out with about two and a half furlongs to run of the feature race on the card, the Extra Places At totesport.com Handicap.
That seven-furlong event, which had eight runners, was declared void and the rest of the meeting called off, as the course remained in darkness.
The British Horseracing Authority said on its Twitter feed: “Due to the judge not being able to verify the full result, the race has been declared void.
“Due to power failure, the decision has been made in conjunction with racecourse management to abandon the remainder of the meeting.”
An enquiry was held into the circumstances surrounding the failure of power.
The Clerk of the Course, Racecourse Executive and an alectrician were interviewed.
Having heard their evidence, the decision was made in conjunction with Racecourse Management, to abandon the remainder of the meeting.
A report was forwarded for further consideration to the Head Office of the British Horseracing Authority.