During Barklage's youth career he primarily played for Lou Fusz S.C. In 2004, he led Scott Gallagher to a USYSA national championship. Barklage also attended Christian Brothers College High School in St. Louis. Barklage played college soccer at the University of New Mexico and at St. Louis University. He earned first-team All-Mountain Pacific Sports Federation honors and was named to the NSCAA All-Far West Region third team in his second year at New Mexico in 2006, and was named to the TopDrawerSoccer National Team of the Season, the NSCAA All-Mid-Atlantic Region Second Team and the Second-team All A-10 Conference in his second year at St. Louis in 2008. During his college years he also played with Chicago Fire Premier in the USL Premier Development League.
Professional
Barklage was drafted in the third round of the 2009 MLS SuperDraft by D.C. United. He made his professional debut on 28 March 2009, coming on as a late substitute for Christian Gomez in D.C.'s game against Chicago Fire. After struggling for playing time due to serious injury, D.C. United opted not to renew his contract at the end of the 2010 MLS season. He went on trial with United during the 2011 pre-season to earn a contract with the club. His trial was successful and United signed Barklage on 25 March 2011. However, at season's end the club declined his 2012 contract option and he entered the 2011 MLS Re-Entry Draft. Barklage was not selected in the draft and became a free agent. On March 5, 2012 it was announced that Barklage had agreed to terms with New York Red Bulls of Major League Soccer. Barklage quickly acclimated into his new role at right back with New York, helping the club to three consecutive clean sheets during May 2012. On June 24, 2012 Barklage scored two goals to help New York to a 3-2 victory over his former club D.C. United. Barklage remained with New York throughout 2013 but his contract option was declined at season's end. He entered the 2013 MLS Re-Entry Draft and was selected by San Jose Earthquakes, signing with the club in January 2014. He made his Earthquakes debut against the New England Revolution on March 29, 2014. Barklage started in 10 of 13 appearances in his only season with San Jose. On March 18, 2015 Barklage and San Jose mutually agreed to terminate his contract. Days later, Saint Louis FC of the USL announced the signing of the St. Louis native for the 2015 USL season. “It’s going to be great to get home and represent my hometown as a member of Saint Louis FC,” Barklage said. “I’ve been in talks with the club for the past month or so, and they’ve treated my family and I with nothing but respect.”
