Kohei Sato
Sekimoto debuted for Pro Wrestling Zero1 by taking part in the Fire Festival 2001 where he gained no points and there could not progress further. He returned in 2006, once again participating in the Fire Festial but would do a little better by defeating Kohei Sato which left Sekimoto with two points. On March 8, 2007, Sekimoto defeated Ryouji Sai to become the NWA United National Heavyweight Champion. As champion he participated in Fire Festival 2007 and once again fared poorly, gaining three points. On November 13, Sekimoto lost the NWA United National Heavyweight Championship to Yoshihito Sasaki. In block B of the Fire Festival 2008, Sekimoto gained three points and therefore didn't progress further and in next years Fire Festival 2009 gained five points, he was joint top in block B with Masato Tanaka and Ryouji Sai and therefore a decision three-way match took place which Sai won.