Very entertaining and close fight,Jacobs didn't weigh in and came into the fight with a huge weight advantage.The IBF belt i believe it was,was therefore not on the line.
The knock down in the early rounds i think rd 4 may have swayed the fight.Definitely on Harold Lettermans card although 2 of the judges gave it by a few rds to GGG.I think Jacobs corner failed in not telling him the fight hinged on rd 12 as he was under the impression he was winning the fight.GGG came out to win rd 12 and did,so even if Lettermans card was more accurate he didn't leave it to the judges.
The fight prior to the main event was also really exciting with the WBC belt changing hands as Chocolatito losing his 46-0 unbeaten record in another 12 rd decision.The challenger also had a point taken away for a headbutt although i think is was unintentional.