In May 2003 Scott Lost,
Disco Machine,
Excalibur,
Joey Ryan,
Super Dragon and Top Gun Talwar, known collectively as the "PWG Six", founded
SoCal promotion
Pro Wrestling Guerrilla. Lost began his PWG career as part of the
X-Foundation with Funky Billy Kim and "The Technical Wizard" Joey Ryan. They wrestled together on PWG's first show on July 26, 2003, losing to the team of
Adam Pearce,
Hardkore Kidd, and
Al Katrazz. Lost then wrestled in the
Badass Mother 3000 tournament but was defeated in the first round by the eventual winner of the tournament
Frankie Kazarian. Lost teamed with Ryan in the
Tango & Cash Invitational tournament, but was once again unsuccessful in winning gold as they were defeated in the semifinals by Super Dragon and
American Dragon. They did however win the
PWG Tag Team Championship at the next show by defeating inaugural champions
Homicide and
B-Boy, but could only hold them until the following month, before losing to
Chris Bosh and
Quicksilver. Three months later, they regained the championship from Super Dragon and Excalibur. This reign did not go well either, as the X-Foundation began losing many matches. Lost blamed Ryan for this, and the two had a ladder match to determine which one would hold the tag team championship. Lost won the match and chose Chris Bosh as his partner. The team called themselves
Arrogance. They had a dominant reign, and became the longest reigning champions in PWG history, a record broken by
The Young Bucks in 2009. During their reign Lost also rejoined with his former partner Joey Ryan. Scott Lost, along with Chris Bosh, would help Joey Ryan win a number of his matches, especially once Ryan won the
PWG Championship. Arrogance lost the titles to Quicksilver and
Scorpio Sky in a
titles vs. masks match. Although Lost did not win, he attacked Scorpio Sky after the match and unmasked him, starting a feud that ended in a violent I Quit match at ''Chanuka Chaos (The C's Are Silent)'', where Sky was able to force Lost to quit. In early 2006 Scott Lost began once again going after the tag team championship with Bosh. They faced champions Super Dragon and
Davey Richards on February 19, 2006, at
European Vacation - England, but were unable to regain the titles. In a rematch at
Enchantment Under the Sea on May 20, 2006, with help from Joey Ryan and Scorpio Sky, lost and Bosh regained the titles. The four men formed a stable called
The Dynasty. They held the titles until October 6 when they lost them to Super Dragon and B-Boy. 2008 started off with Lost and Joey Ryan being awarded the PWG World Tag Team Championship on January 27 after the previous champions Super Dragon and
Davey Richards failed to defend the titles against them on three occasions. In their first defense that same night Lost and Ryan defeated the Young Bucks. On March 21, 2008, lost and Ryan lost the PWG World Tag Team Titles to
Kevin Steen and
El Generico. During the rest of 2008 he would also defeat TJ Perkins to become the AWS Lightweight Champion and in August defeat Scorpio Sky to become the AWS Heavyweight Champion. Since then Scott Lost has held both titles and often defended both of them on the same card. Prior to the
2009 Battle of Los Angeles Lost went on a winning streak and defeated El Generico,
Colt Cabana,
Human Tornado and Joey Ryan in singles matches, only to lose to eventual winner
Kenny Omega in the quarter-finals of the actual tournament for the vacant PWG World Championship. On Friday, January 29, 2010, Scott Lost competed for the wrestling promotion
Ring of Honor, when they made their debut in Los Angeles, California, as part of the
WrestleReunion 4 convention. He teamed up with Scorpio Sky in a losing effort against Colt Cabana and El Generico. On the following night's PWG show, lost and Joey Ryan were defeated by Japanese wrestling legend
The Great Muta and Japanese up and comer
KAI in a tag team match. On June 28, 2010, PWG announced that Lost would be wrestling his retirement match on July 30 at the company's seventh anniversary show, where he will face longtime rival Scorpio Sky. On July 30 Lost was defeated by Sky in his retirement match. With his professional wrestling career over, Epperson announced his intentions of becoming a full-time
comic book artist. ==Championships and accomplishments==