Board Thread:News and Announcements/@comment-34277398-20180120160317/@comment-26636534-20180122145539

Side note, Minato's base rasengan is equivalent to Naruto's BB rasengan. So Minato's rasengan should be stronger than a raikiri. Also, the instance of Minato vs 14yr old Obito, Minato had to worry about his child, his wife and the village being attacked by a full-sized Kurama. He's full attention was definitely not on Obito, but Minato still managed to win, that says quite a lot about his strength.