WBO champion finally agreed terms with last month in several places in dispute either June 25 or July 2 IBF / WBO holder Klitschko meet.
Klitschko's manager Bernd Boente Sports Press Association confirmed that the 57,000 capacity ground IMTECH blockbuster competition in Germany and Switzerland after phase options other places in Ukraine, but have been considered.
Considered the various European venues, go to battle economic reasons, to be held in Britain never had.
Klitschko and his brother Vitali, the WBC champion, is great despite the Ukrainian nationality in Germany draws, while Switzerland would have held its own financial appeal.Boente confirmed the negotiations and yesterday's final decision had been carried out with his opposite number Haye's manager Adam Booth.
Boente told Press Association Sport, "The fight will be July 2 in Hamburg. It is confirmed 100%".
"We had different options and held negotiations in other countries. Switzerland was in play, Ukraine and different options in Germany.
"But it was always the case that Adam Booth and myself discussed all these things such as the different business options on the table, as partners, and then made the decision together yesterday that we'd go to Hamburg."
IMTECH Arena, Bundesliga side Hamburg, which holds 57,000 will be held at the house.
Boente said, "I think the capacity will be something in that range because while we have more seats on the pitch, we are losing some seats because of the huge rigging, etc".
Klitschko's long has been undergoing rehabilitation from a stomach injury suffered in December but said Boente some later date was irrelevant.
He said, "The date had nothing to do with Wladimir's stomach injury. The arena could not do the week before.
"We had only two dates from (broadcasters) Sky and RTL, the key players here, and it was either June 25 or July 2.
"So it was always dependent on the stadium. In Hamburg, only July 2 was possible because of various concerts. I think two weeks later Take That play the same arena."