Mr Newlife died in 2009, aged 59, leaving his estate to Oxfam, who now collect £101,840.
William Hill said: "Mr Newlife told had identified Roger Federer as a future serial winner & wanted to place a 'sizeable' long term wager on him.This is one of the most remarkable bets we have ever accepted."
More top news
Monday's weather for the east of the region
Monday's weather for the west of the region
Five people have been rescued from a small leisure boat on the Solent, after its engine failed and it began taking in water.