This tag refers to the video ハンマー投げ逆再生 (English: Hammer Throw Reverse Playback) uploaded by Kannai to Nico Nico Douga on November 8th, 2007. The video is reversed footage of the World Athletics (formerly International Association of Athletics Federations; IAAF) 2007 Men's Hammer Throw competition in Osaka, Japan, at Nagai Stadium. The video is notable for the viewer-coined mishearings, or soramimis, of the commentators speaking in reverse.