Conversation so far:
When did Ingemar Johansson become heavyweight champion?
Ingemar Johansson took the Scandinavian heavyweight title in 1953.
Who did Ingemar Johansson fight to win the Scandinavian Heavyweight Championsip in 1953?

Question: did he have any losses?
Self-contained rewrite: Did Ingemar Johansson have any heavyweight championship losses?