Career
Although Karel was inducted into the International Tennis Hall of Fame in Newport, Rhode Island, in 2006, January is almost totally forgotten today outside his native Czechoslovakia. January, said by some to be the most talented of them all, remained an amateur throughout his career. His highest world ranking was World Number.
10 in 1927.
Although Karel continued to play at a top level on the professional tennis circuit until he was in his forties, January ended his amateur career in the mid 1930s, which many considered a mistake. Afterwards, he lived in Florida, where he gave tennis lessons until his death.