Nine-year-old Saffron Sollitt, from Wallingford, beat 500 other competitors from around the world at Days Lock in Little Wittenham, near Abingdon, on the River Thames to claim the individual prize in the World Pooh Sticks Championships.
The game, written about by author A A Milne in the Winnie the Pooh books, involves racing sticks under a bridge.
Team Kelly took the top spot in the group competition.
The championships started in 1983 when the lock keeper noticed that walkers in the area were recreating Pooh’s pastime on the River Thames and thought it would be an excellent way of raising money for his favourite charity, the Royal National Lifeboat Institution (RNLI).
After the lock keeper’s retirement it was passed to the Rotary Clubs of Oxford Spires and Sinodun.