Montag lined up alongside 2016 Olympian Rachel Tallent but both Australian's endured a frustrating race.

Montag was disqualified after passing through 15-kilometres in 13th position, 40 seconds outside a podium finish.

Tallent, who has battled injury over the last two seasons, finished 59th in 1:36:34, 1:14 outside of her season’s best.

Mexico's Maria Guadalupe Gonzalez become the first senior woman in the history to win back-to-back titles and recorded a seasons best of 1:26:38. 

Shijie Qieyang of China claimed silver finishing 16 seconds ahead of teammate Jiayu Yiang.