Nyorai kuenderera mberi kweiyi ndima - Holcomb akahwina menduru ina paFIBT World Championships: goridhe (varume vana: 2009) uye menduru nhatu dzebronze (varume vaviri: 2009, timu yakavhenganiswa: 2008
, 2009). Akakundawo 2007 Two-man World Cup title, akakunda 2007 combined World Cup title, uye akapedza wechipiri muna 2007 Four-Man World Cup standings. Akava murume wokutanga wokuAmerica kukunda mukombe wenyika wevarume vaviri. Holcomb akahwinawo 2007 uye 2010 Combined World Cup mazita, uye 2010 4-Man World Cup zita.