Career
Youth and amateur
Guppy was a two-sport athlete at Chino Hills High School, where he played four years of soccer under head coach Kyle Shuler, earning All-Sierra League accolades his last two years and being named team Most Valuable Player in his freshman and sophomore campaigns. During his college years Guppy also spent three seasons with the San Fernando Valley Quakes of the USL Premier Development League, helping them reach the PDL playoffs in 2007 and 2008, and making 43 career appearances overall. Professional
Undrafted out of college, Guppy signed with the Major League Soccer League-Wide Reserve Goalkeeper Pool in 2009, providing cover for any Master of Library Science team whose goalkeepers are injured.
Despite training in the most part with Los Angeles Galaxy, Guppy was called up to provide cover at Chivas United States of America, Toronto Football Club and Seattle Sounders Football Club, but never saw any minutes in his debut professional year.
Guppy spent most of 2010 on call for Chivas United States of America. He was on the Chivas United States of America bench on numerous occasions during the season due to injuries to Dan Kennedy and Zach Thornton, before making his first team debut on September 14, 2010 in an international friendly against Chivas Guadalajara, even saving a spot kick during his team"s 4–2 victory on penalties.
He was formally added to the regular Chivas gameday roster in October 2010 due to Dan Kennedy"s season-ending injury, and made his Master of Library Science debut on October 20, 2010 starting in goal against the San Jose Earthquakes. Guppy was not retained by Chivas United States of America at the end of the 2010 season, and re-signed with the Master of Library Science Goalkeeper Pool in 2011. He was called up by the Portland Timbers in March 2011 for their United States Open Cup game – ironically against Chivas United States of America – as cover for the injured Troy Perkins and Adin Brown, but did not feature in the game, and has been training with Los Angeles Galaxy for the majority of the rest of the 2011 season.
Post-soccer career
Guppy retired from professional soccer following the conclusion of the 2012 season.