Further inspection at Yarmouth
Racing at Great Yarmouth was given the go-ahead by officials after passing an inspection, with the exception of the final race.
Yarmouth have abanonded the finale
An inspection was carried out by stewards at the Norfolk track just over an hour before the first race, after a patch of false ground was discovered around the top of the straight near the four-furlong marker.
After a number of jockeys and trainers, including Ryan Moore, Jamie Spencer, Luke Morris and David Simock, together with officials, looked at the track, a decision was made to allow racing to be staged with only six races as opposed to the advertised seven.
Stipendiary steward Robert Sidebottom said: "It's on, all bar the last race. The last race over five furlongs is a maximum field and it makes it very close to the soft patch of ground.
"We feel that in the other races the jockeys have the opportunity to miss it, but we are uncomfortable with the last race as there is a maximum field and as it is just after where the stalls open it doesn't give them opportunity to avoid it.
Jon Pullin, spokesman for owners Arena Racing Company, said: " We don't know at this stage what the issue is. We need to do some more investigating to find the cause.
"The key thing is we have got the rest of the card on."
Racing only returned to Yarmouth in the autumn of 2015 after the track was closed for more than a year while repairs were carried out to the straight where ridges had formed.
The re-opening was put back on two occasions and the third day of this equivalent meeting last year was abandoned after heavy rain saw a horse slip and fall after the line.