lol. yes it has happened multiple times across all divisions.
Lennox Lewis won every round against David Tua, the consensus #1 in 2000. I don't remember if he won all rounds on the cards, but it was a whitewash. Also pretty sure Klitschko-Ibragimov was a whitewash. So was Klitschko-Johnson - though one of the judges shamefully gave one round to Johnson. two of the judges had it 120-108 - which was the fair score.
Klitschko vs. Briggs was also 120-107 (twice) and 120-105.
With regards to Lewis-Tua, Klitschko-Ibragimov, the opponent might have snatched one or two of the judges rounds.
Lennox Lewis won every round against David Tua, the consensus #1 in 2000. I don't remember if he won all rounds on the cards, but it was a whitewash. Also pretty sure Klitschko-Ibragimov was a whitewash. So was Klitschko-Johnson - though one of the judges shamefully gave one round to Johnson. two of the judges had it 120-108 - which was the fair score.
Klitschko vs. Briggs was also 120-107 (twice) and 120-105.
With regards to Lewis-Tua, Klitschko-Ibragimov, the opponent might have snatched one or two of the judges rounds.

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