Oxfam have received a donation of £100,000 following Roger Federer's victory over Andy Murray in Sunday's Wimbledon men's final.
Nicholas Newlife made a bet in 2003 that the Swiss would win seven titles at the All England Club by 2020.
After Newlife's death three years ago he left outstanding betting slips as part of his estate to the charity organisation.
Federer's triumph saw him equal William Renshaw and Pete Sampras for the most wins at SW19.