Oomote Takuto
(大表 拓都 Ōomote Takuto) Japanese professional, 3p in 2019 (40 wins, as of December 20)
His Fox handle is でぇもん(demon8528).
Oomote won four games in the 2022 Ryusei, in a win and continue format. His defeated opponents, successively, were Mito Shuhei, Koyama Kuya, Ando Kazushige and Sasaki Tsuyoshi. He was knocked out by Motoki Katsuya.
JohnF. There is a very good reason for Oomote (which is also what the biggest database, GoGoD, uses). It is true that names such as Kori Toshio (in GoGoD and elsewhere) use a single O for OO, following usual practice in the wider world. But Oomote has a triplet: OOOmote. As the characters (and pronunciation) tell you.