Board Thread:Naruto Discussions/@comment-32617252-20180330183206/@comment-32685487-20180430231036

@rachin but that's speculation and we can't know otherwise. A did state he was going to use his maximum speed against Minato at that last moment when Minato warped to B and held the Kunai up to him, we do know that. We have no proof he was/was not using maximum speed. So maybe A did improve later in life with that tech. We don't know. Minato was only stated to be the fastest Shinobi back at the time he was alive, after that it is just speculation.

Also, no james, Minato used FTG which is instantaneous transportation to get away from A at the last moment. Not the same as physcial speed..