Bosses at the Silverstone circuit in Northamptonshire have apologised after the Moto GP was cancelled due to heavy rain.
Race organisers had brought the start time forward from 1pm to 11.30am in a bid to beat the forecast rain, but heavy downpours continued throughout the day.
Following a meeting between officials and MotoGP riders, the decision was made just after 4pm to call off the race due to the track conditions being deemed to be too unsafe.
The cancellation meant there was disappointment for the thousands of fans who had flocked to the circuit to watch the race.
MotoGP have also confirmed that there was "no option" to hold it on Monday instead.
Silverstone's managing director Stuart Pringle made a personal apology, in an online post.