Playing career
Born in Sundbyberg in 1931, Stockenberg grew up in Djursholm, where his family moved in 1940. He won the Swedish junior championship five times, from 1945 to 1949, and the Wimbledon boys' singles in 1948 and 1949. As a senior he stood just below the top Swedes of the 1950s, Lennart Bergelin, Sven Davidson and Torsten Johansson. His first tournament win came at the North of England Hardcourts in Scarborough in 1952; in 1954 he won at Ostend and took the Swedish singles title, beating Davidson in the semi-final and Bergelin in the final. He also won the Swedish doubles in 1950 with Nils Rohlsson. He played Davis Cup for Sweden in 1953 and 1955, losing both his rubbers against Italy, and kept playing until 1962. He died in 2019.
On grass