Key takeaways
Kyoma Akimoto beat Patchy Mix by knockout at 0:38 of round two in the main event of RIZIN 52 at the Ariake Arena in Tokio. In the co-main event, Luiz Gustavo beat Taisei Sakuraba by knockout at 2:34 of round two at lightweight.
Across the twelve bouts that produced a result, seven ended by knockout, three by submission and two on the judges' scorecards — ten stoppages in twelve fights. Every decision was unanimous: not one result divided the judges.
The quickest finish belonged to Jinnosuke Kashimura, who stopped Hideo Tokoro at 1:06 of round one, and five of the eight finishes came inside the opening round. The longest was Jung Hyun Lee's knockout of Jo Arai, 13 minutes and 45 seconds in. End to end, the twelve fights filled 57 minutes of cage time.
Six weight classes were used, featherweight most often with three bouts.