Grigson akapinda muMitambo yeOlympic yeZhizha ya1996 muAtlanta achiuya wechi15 mumakwikwi echikadzi ekuyambuka nyika
chiitiko. Akakwikwidzawo mumutambo wevakadzi weCross-country kuma 2000 Summer Olympics muSydney kwaakauya 6th.