Pedzisa mutsara unotevera: Mayock akakwikwidza paMitambo yeOlympic mitatu, pamitambo ya1996 muAtlanta nemitambo ya2000 muSydney munhangemutange ye1500 m uye pamitambo ya2004 muAthens munhangemutange ye5000 m. Akakwikwidzawo muMitambo yeCommonwealth katatu, muna 1994 mu
Victoria uye 1998 muKuala Lumpur, kwaakakunda menduru dzebronze nesirivha mumamita 1 500. Akava wechina mumakwikwi e5,000, pa2002 Commonwealth Games muManchester. Iye zvino ane zvinyorwa zveBritain mukati me2000 m (4:57.09) uye 2 mamaira (8:17.06). Nhoroondo yake yapfuura mumamita 3000 (7:41.09) yakaputswa naMo Farah muna 2009. Mayock akamiririra Great Britain ka58 munguva yebasa rake. Akamhanya nguva inoshamisa ye3: 31.86 yemamita 1500 uye mamaira imwe mu3: 50.32.