text: Low Ki made his debut for Pro Wrestling Guerrilla (PWG) on April 7, 2007, defeating Davey Richards at All Star Weekend V – Night One. On January 5, 2008, Low Ki won the PWG World Championship after defeating Bryan Danielson in an unannounced match. He had one successful title defense against El Generico, before a knee injury forced him to forfeit the championship just a month later.
  Low Ki returned to PWG at All Star Weekend 7 – Night One on August 30, 2008, where he was a part of a four-way match for the World Championship; the bout also featured Eddie Kingston, Necro Butcher, and defending champion Chris Hero, who retained by pinning Kingston. On November 1 and 2 in Burbank, California, Low Ki defeated Roderick Strong in the opening round, Masato Yoshino in the quarterfinals, Nigel McGuinness in the semifinals, and Chris Hero in a non-title final match to win the 2008 Battle of Los Angeles tournament.
  After his World Wrestling Entertainment tenure, Low Ki returned to PWG on January 29, 2011, during the WrestleReunion 5 weekend, in a rematch from 2007, where he defeated Davey Richards. In his next appearance on April 9, Low Ki defeated Akira Tozawa. On May 28, during the second night of All Star Weekend 8, Low Ki unsuccessfully challenged Claudio Castagnoli for the World Championship.