On his pro debut in 1910 future Australian sensation Les Darcy fought Guv'nor Balsa over a scheduled 10 rounds, the fight was scored a draw and it was decided by all parties to box one more round to decide a winner, which Darcy (aged 14) won on points.
This was the only time a professional fight was won on points over 11 rounds.

(photo below shows Darcy at 15 when he worked as an apprentice blacksmith)