[10] He also acted in the television sitcoms Leave it to Beaver, My Three Sons, My Little Margie, and The Life of Riley, and the TV series Annie Oakley.

[10] Singer won his first handball national and world singles championships in 1965, and his last in 1988.

[13][14][15] In 1971, on behalf of the United States government, Singer toured Germany and England with handballer Jimmy Jacobs, giving clinics and exhibitions to Air Force personnel.

[11] When he retired from competition in 1988, Singer was ranked the #5 all-time professional tournament winner.

[11][16] He was also inducted into the United States Handball Association Hall of Fame in 1994.