Sadowski-Synnott 13th in 'board slopestyle

New Zealand snowboarder Zoi Sadowski-Synnott has finished 13th in a crash-filled women's slopestyle at the Winter Olympics.

The 16-year-old made several mistakes on her two efforts, scoring 26.7 and 48.38 in heavy winds in PyeongChang on Monday.

In a poor advertisement for the sport, only a small number of the 25 riders were able to land their runs as conditions, signposted by full wind socks, wreaked havoc.

Jamie Anderson took gold with a stellar first run awarded 83 points, with the American not needing to attempt her second.

She was too good for the 76.33 from silver medallist Laurie Blouin of Canada and Finnish bronze winner Enni Rukajarvi (75.83).

The final took place a day after qualification was cancelled due to wind and all riders progressed, with the decider shortened from three runs to two to fit into the predicted competition window.

Sadowski-Synnott, one of New Zealand's best medal hopes after winning World Cup gold in March despite being second youngest on the team, looked comfortable on the rail sections of her first run before a bobble brought her undone for the jumps.

It was a similar story for her second run.

She will now turn her attention to next week's big air event, in which she won silver at last year's world championships.