The name 'Masakatsuakatsu' means 'I won properly, I did' and 'Kachihayahi' means 'Winning was as fast as the sun rise,' and they are thought to be an announcement of winning ukei.
名前の「マサカツアカツ（正勝吾勝）」は「正しく勝った、私が勝った」の意、「カチハヤヒ（勝速日）」は「勝つこと日の昇るが如く速い」の意で、誓約の勝ち名乗りと考えられる。