Way back in the day: Marvelous Marvin Hagler losing to Antufermo was a big time robbery. His loss to Leonard was questionable. Ken Norton was robbed twice against Ali. I think judging has actually gotten a little better of late. Judges are better trained and subject to better scrutiny now but it can still get better.
Lara been unlucky he beat Molina imo and was robbed blind vs Williams. Sweet Pea robbed vs Chavez, Oscar fight could have gone either way and he also beat Ramierz imo.
The Alexander one was obvious, relatively close but impossible to score for Alexander without having a clear agenda due to the # of clear Matthysse rounds + the knockdown. The Judah fight wasn't a real robbery, but more like a hometown decision. When you give Zab every close round then you could score it in his favor. But it's clear Matthysse should have won that one too. The Campillo and Molina examples are much clearer.
I don't know if it's hard luck or roberry cause I have been unable to see these fights but Victor Polo first four title shots ended with 3 split decision and a draw ...