Wedderburn achieved his lifetime best in the 3000m steeplechase on 5 July 1988 at the DN Galan in Stockholm, running 8:18.32. As of 2016, this time ranks him fifth on the British all-time list behind Mark Rowland, Colin Reitz, Tom Hanlon and Graeme Fell. In September 1988, after qualifying from his heat with 8:38.90, he ran 8:28.62 to finish 10th in his semifinal at the Seoul Olympics (18th overall).

He represented England, at the 1986 Commonwealth Games in Edinburgh, Scotland and represented England, at the 1990 Commonwealth Games in Auckland, New Zealand.

Edison Everton Wedderburn (born 6 December 1960) is a male English former distance runner who competed mainly in the 3000 metres steeplechase. He represented Great Britain at the 1988 Olympic Games and won a silver medal at the 1985 Universiade.