Rubuta ci gaba don wannan sakin layi - Duncan ya yi gasa a Wasannin Olympics na hunturu na gaba a 1968, kuma ya sake yin gasa a duk wasannin maza na tsaunukan tsaunuka. A cikin maza masu saukowa
, an cire shi daga gasar. A cikin giant slalom na maza, ya haɗu da lokaci na 3:38.17 (+8.89) yana sanya shi a matsayi na 18. A slalom na maza ya kasa ci gaba zuwa zagaye na karshe.