ROEHAMPTON, England — First, the rain fell. Hard. Then, the British pound fell. Harder.

Those successive events on Thursday and Friday, caused by clouds and then Britain’s voting to leave the European Union, washed away a chunk of the earnings of players who lost in the final round of Wimbledon qualifying. Play had been scheduled to finish Thursday, but it was postponed to Friday because of persistent rain.

Had the rain held off, allowing matches to finish as scheduled at the Bank of England Sports Grounds, the prize money, paid by Wimbledon in pounds, would have been transferred into players’ foreign checking accounts at significantly higher rates. The one-day delay saw the pound fall from a Thursday average of around $1.49 to $1.37 on Friday (bottoming out at $1.32 early Friday morning).

The plunge, which pushed the pound to its lowest value in 31 years, devalued a prize of 15,000 pounds for the losers that, when converted into American dollars, fell from $22,350 to $20,550. For players transferring from the pound to the also-crashing euro, the fall was from about 1.31 euros to 1.24, but still enough to result in an overnight loss of €1,050.

Once a player is eliminated from a tournament, he or she visits the prize money desk, where the money is wired to a bank account. A paper check is also an option, but rarely chosen by players.