Kenneth Ruddock is an Irish open water swimmer who won the 1947 Liffey Swim in Dublin, Ireland.
The Liffey Swim is an annual race in Dublin's main river, the Liffey and is one of Ireland's most famous open water swims. It is organised by Swim Ireland and is held on a Saturday in either late August or early September.
Entrants to the Liffey Swim must complete five races of the season to qualify. Many levels and ages of swimmers compete in the race, but entrants must be a member of a swimming club and be able to swim a mile. The race is handicapped with the slowest swimmers starting first and the fastest last.
The race starts at the Watling Street Bridge near the Guinness Brewery and takes competitors past landmarks such as the Four Courts, under the Ha'penny Bridge and O'Connell Bridge to finish at the The Custom House. Wetsuits are not allowed in the race that often coincides with the Liffey Descent Canoe Race. The water authority releases 30 million tons of clean water from the Liffey reservoir to raise the river to flood level for this event.