Tickets for the Wimbledon men's final were being sold for thousands of pounds today as Murray Mania sweeps the nation.
Tickets for Andy Murray's semi-final tomorrow were changing hands for up to £4,500, with the average selling for £3,500.
And online ticket marketplace Viagogo said at one point on Thursday tickets for Sunday's Grand Slam final were being offered for up to £15,000 each, although prices fluctuate constantly.
Viagogo said there was a 20% increase in searches on the site for finals tickets after Murray booked himself a place in Friday's semi-finals, and predicted that prices could get as high as £45,000.
Last year tickets to the finals were trading up to £12,000 per ticket during the semi-final stage, Viagogo said, with the highest sold for £6,000.
A spokeswoman said there has been a considerable rise in listing price for tickets on the site since Nadal was knocked out so early in the tournament.
Semi-final tickets have sold for an average of £3,500 this year, with the highest sold for £4,500, Viagogo said, compared to last year, when the highest offer for a semi final ticket was £3,500 and the highest actually sold for £2,880.
Edward Parkinson, director of Viagogo UK, said: "As a marketplace ticket prices fluctuate as sellers vary their asking prices.
"A pair of tickets for the men's final were listed at £15,000 this morning but were down to an offer price of £10,000 this lunchtime.
"However, there are now tickets listing for just over £13,000 which demonstrates the constant flux of the marketplace. Tickets for last year's men's final were being offered for up to £25,000 for a pair.
"Since Murray won the quarter finals we've seen a 25% increase in the price of listed tickets.
"If he gets through to the final it will be history in the making and we could see tickets being offered for up to £45,000 for a pair."
William Hill has put Murray at 4/9 to beat Jo-Wilfried Tsonga to make it into the final.
But they also put him at 10/11 to finish the tournament as runner-up.
Spokesman Rupert Adams said: "There can be no doubt that the public and punters are getting behind Murray to win Wimbledon this year and hopefully victory on Sunday will open the floodgates for major victories."
If the Scot beats Tsonga he will become the first British man to reach the Wimbledon final since Bunny Austin 74 years ago.
The British number one has now equalled Tim Henman's tally of four semi-finals.
The 25-year-old said he wants to go further than the semi-final.
"When you start each tournament, you want to try and win. Obviously now that I'm in it, I'm not thinking, 'Great, I'm in the semi-finals'. You want to try and go further.
"But I know how hard it is. Everyone kept telling me I had such a hard draw and how tough it was going to be to get through. I managed to do that. I've beaten some very good players. It's been a good tournament so far.
"But I want it to continue. I'd be disappointed if I lost before the final in any tournament, but I don't just expect to get there. It's a very difficult thing to do. You need to make sure you perform properly."
Murray was enjoying a day off ahead of his match against Jo-Wilfried Tsonga. If he wins, he will have to face either world number one Novak Djokovic or six-time Wimbledon champion Roger Federer in the final.
They were watched by Wimbledon royalty Cliff Richard, sporting a powder blue suit and matching tie, but with no rain stopping play, the star did not have to resort to his usual task of entertaining the crowds.
Yesterday Murray was treated to real royalty for his quarter-final clash against David Ferrer, when he was watched by the Duke and Duchess of Cambridge but the royal couple left SW19 before they could see him clinch the match.