<prompt> Feleletša polelo e latelago: Geiger o thomile go ba moahlodi ka 1988. O ile a ba United States Soccer Federation National Referee ka 2003 gomme a šoma ka Major League Soccer go tloga ka 2004 go fihla ka 2018. O ile a ba moahlodi dithonamenteng tša CONCACAF go tloga ka go ba moahlodi wa FIFA ka 2008, gomme o ile a ba moahlodi wa Gold Cup le dithonamenteng tše dingwe tša boditšhabatšhaba le dipapadi. Geiger o ile a kgethwa bakeng sa  <response>: CONCACAF U-20 Championship ka 2011, moo a ilego a ahlola makgaolakgang. 