Duncan wuxuu ka qeyb galay ciyaarihii Olombikada ee xilliga qaboobaha ee 1968, mar kale wuxuu ka qeyb galay dhammaan tartanadii alpine ee ragga. Tartanka ragga ee hoos-u-dhaca, waa laga saaray. Xiddigaha orodka weyn ee raga
, wuxuu isku daray waqtigii 3:38.17 (+8.89) isaga oo dhigaya kaalinta 18-aad. Tartanka ragga ee slalomka ma uusan awoodin inuu u gudbo wareegga ugu dambeeya.