Kammala jumla mai zuwa: Ya buga wasanni 305 don IK Sleipner kuma ya zira kwallaye 152 kuma ya zama zakaran Sweden tare da kulob din a 1938. A duniya ya bayyana a cikin
1934 da 1938 gasar cin kofin duniya. Keller kuma ya kasance mai sha'awar bandy, teburin tebur da kuma wasan bowling.