Today's meeting at the Cheltenham Festival has been abandoned due to high winds at Prestbury Park.
All six races due to take place this afternoon will instead be staged on Thursday and Friday. Today's feature race was the Seasons Holidays Queen Mother Chase.
Cheltenham managing director, Edward Gillespie, told Channel 4 Racing: "We had a forecast last night indicating that wind speeds would gust over 50mph, up to and including 3pm this afternoon. We had a look this morning and that has sadly been reinforced.
"That means many of the temporary facilities would not be safe at that level. The reason we are not racing today is for the safety of the customer."
An official statement issued by the Cheltenham added: "The forecast for Thursday and Friday is much calmer and the races abandoned today will be rescheduled to be run on Thursday and Friday on extended cards, with a first race time of 12.30pm.
"The revised order of running and further details regarding Thursday and Friday will be issued in due course."
The course was also hit in the build-up to the meeting. A hospitality tent at the racecourse was flattened on Monday by the high winds and the starter's rostrum was blown over, damaging fencing.
The situation grew untenable during Wednesday morning, however, and the tented village at the track had to be evacuated.
Gillespie added: "The rest of the crowd are close to the (worst-hit) areas so it's not a case of just one area been out. Equally, it's a west wind, which would also take debris onto the track.
"We've had one structure blown down this morning, just before 7 o'clock. We cannot guarantee the safety of the customers but the good news is we can now stage all the races now over the next two days.
"Tomorrow we will use the Old Course and on Friday (the races) will be all run on the New Course. We will be meeting at 4pm to assess the situation again."
Irish trainer Dessie Hughes, who had three entries on Wednesday, including Schindlers Hunt in the Queen Mother, expressed his shock at the announcement. He said: "I'm very surprised - at the moment you'd race. We can't do very much at this stage and we will have to wait until tomorrow."
Jockey Barry Geraghty added: "It's very windy, but it's fine. It's frustrating and it's going to be a long, drawn-out day waiting for tomorrow."
Tom Cooper, who was due to saddle Forpadydeplaster in the opening Ballymore Properties Novices' Hurdle, was unfazed by the decision of the Cheltenham executive.
"It won't bother 'Pady' - he's very relaxed - and it doesn't bother me. It won't make any real difference when racing goes ahead."