Walter Knight was one of 12 members of the Birmingham & District Gymnastics Association selected for Great Britain at the 1912 Stockholm Olympics, but he was a non-starter. He was a member of the successful Dolobran Club and was on the Birmingham City team that lost to Northampton Polytechnic Institute in the final of the 1912 Adams Shield for the National Team Championship. Like many gymnasts at that time, Knight was also a competent standing high- and long jumper. By profession, he was an insurance agent.