The World Darts Championship has also been affected. Organisers had planned to have 1,000 fans in attendance – as permitted indoors under tier-two guidelines – before the ruling changed.
Tuesday’s opening night at Alexandra Palace welcomed spectators before the event – which concludes on 3 January – goes behind closed doors, although the government has said it will look at restrictions again on 23 December.
In rugby union, London Irish – who play at Brentford’s new stadium – have confirmed tickets for their European Challenge Cup tie against Pau on Sunday have been taken off sale.
Organisers of racing’s festive highlight, the King George VI Chase at Kempton on Boxing Day, had hoped to welcome 2,000 spectators but have been forced to abandon those plans after Surrey moved into tier three.
The race will now be held behind closed doors, as will Saturday’s meeting at Ascot and festive fixtures at Sandown and Newbury.
A spokesperson for the Jockey Club said: “We know that racing fans will be disappointed to be missing out on some thrilling live action over the Christmas period, especially having only just been allowed to return to our venues in very limited numbers.
“However, we recognise we must all play our part in tackling this pandemic and look forward to welcoming racegoers back to our courses as soon as we’re able to do so.”