Felix Pipes

Fritz Felix Pipes (also "Piepes"; 15 April 1887 – 20 January 1983) was an Austrian tennis player who was born in Prague. He was Jewish, and was a medical doctor. At the 1912 Stockholm Olympics he teamed up with Arthur Zborzil to win a silver medal for Austria in the men's doubles event. 
He also competed for Austria in singles in 1912, and in both singles and doubles (with Zborzil) at the 1908 Summer Olympics.
He was runner-up in the Austrian International Championship in both 1909 and 1913. He twice played at the World Hard Court Championships, losing in round one of singles in 1912 and in the quarterfinals of mixed doubles in 1912, and in round two in 1913.