Career
Mitrenga turned professional in 2007 with a Gold medal in Tehachapi California. Best Tricks Flatspin 900, McTwist 720
2012 – Chewits Xtreme-, Birminghan United Kingdom, 2nd place
2012 – KIA Asian X games, Shanghai, China, 6th place
2011 – European Inline Vert Championships Finals, Moscow, Russia 3rd place
2011 – LKXA Barcelona Extreme, Best trick, Barcelona, Spain, 1st place
2011 – LKXA Barcelona Extreme, Highest Air, Barcelona, Spain, 1st place
2011 – KIA Asian X games, Shanghai, China, 9th place
2010 – Montana Spring Sessions III, Montana, Bulgaria, 2nd place
2009 – European Challenge, Berlin, Germany, 5th place
2009 – Montana Spring Sessions II, Montana, Bulgaria, 1st place
2008 – European Challenge, Berlin, Germany, 2nd place
2008 – Montana Spring Sessions I, Montana, Bulgaria, 2nd place
2007 – European Challenge, Berlin, Germany, 4th place
2007 – American Inline LeagueWorld Championship Finals, Tehachapi, California, United States of America– 1st place
2007 - BTC European Inline Vert Championship, Montana, Bulgaria, 2nd place
2006 – LG Action Sports Finals in Amateur Finals, Dallas (Texas), United States of America, - 7th Place
2006 - VIVATEL European Inline Vert Championships,Montana, Bulgaria, 3rd place
2006 - Rennes Sur Roulettes, Rennes, France, 7th place
2005 - Nova Gorica Inline Vert Competition, Nova Gorica, Slovenia, 4th place.