Pamela Chepchumba akamiswa basa kwemakore maviri pashure pokuedzwa kuti aiva neEPO pa2003 IAAF World Cross Country Championships
rakaitirwa muLausanne, Switzerland. Akanga apedza ari wechitanhatu, asi akarambwa. Akadzoka muna 2005 uye akakunda muUdine Half Marathon.