Maki Sakamoto
From Openwaterpedia

Ocean Navi team with Hiroko Kasahara, Noriko Kimura, Kumiko Koizumi, Maki Sakamoto, Daisuke Tanaka, Mayumi Doi, Rei Yamazaki, Motoko Honma, and Masayuki Moriya after completing a 13 hour 40 minute 40 km crossing of the Sado Channel on 7 June 2016
Maki Nakamoto is a Japanese open water swimmer and a member of the Ocean Navi relay team that took 16 hours 18 minutes to swim across the 43 km Sado Channel course.
Sado Channel Relay
The Ocean Navi team included Masayuki Moriya, Motoko Honma, Hidehiko Kato, Kaori Fukusima, Noriko Kawasaki, Ayako Kawasaki, Yoshimitsu Kitazawa, Noriko Kimura, Jun Kuwabara, Kumiko Koizumi, Maki Sakamoto, Akira Shima, Etsuko Shima, Akiko Niide, Isami Mitsuhashi, Kyoko Morikawa, and Eriko Yoshino.
Hiroko Kasahara, Noriko Kimura, Kumiko Koizumi, Maki Sakamoto, Daisuke Tanaka, Mayumi Doi, Rei Yamazaki, Motoko Honma, and Masayuki Moriya completed a 13 hour 40 minute 40 km crossing of the Sado Channel on 7 June 2016.