The women's snowboard big air competition of the FIS Freestyle Ski and Snowboarding World Championships 2017 was held at Sierra Nevada, Spain on March 16 (qualifying) and March 17 (finals). 37 athletes from 21 countries competed.

Qualification The following are the results of the qualification.

Heat 1 Rank Bib Name Country Run 1 Run 2 Best Notes 1 1 Anna Gasser 82.00 90.00 90.00 Q 2 13 Silje Norendal 84.33 76.66 84.33 Q 3 9 Jessika Jenson 74.33 81.66 81.66 SF 4 35 Antonia Yañez 34.00 80.33 80.33 SF 5 17 Queralt Castellet 78.66 13.33 78.66 SF 6 22 Sofya Fedorova 78.00 14.33 78.00 7 16 Aimee Fuller 63.33 69.33 69.33 8 20 Lucile Lefevre 65.33 38.00 65.33 9 34 Tess Coady 61.33 65.00 65.00 10 26 María Hidalgo 59.66 59.66 59.66 11 5 Klaudia Medlová 57.33 18.00 57.33 12 30 Babs Barnhoorn 56.66 52.66 56.66 13 4 Karly Shorr 37.66 56.00 56.00 14 54 Kateřina Vojáčková 47.00 55.33 55.33 15 12 Brooke Voigt 50.00 31.66 50.00 16 8 Yuka Fujimori 35.00 37.33 37.33 17 31 Urška Pribošič 27.33 30.33 30.33 18 39 Emmi Parkkisenniemi 23.33 18.00 23.33 19 40 Sandra Isabel Hillen Rodriguez 18.66 5.00 18.66

Heat 2 Rank Bib Name Country Run 1 Run 2 Best Notes 1 11 Laurie Blouin 20.00 91.66 91.66 Q 2 2 Enni Rukajärvi 84.66 26.66 84.66 Q 3 24 Kjersti Buaas 83.66 9.66 83.66 SF 4 3 Cheryl Maas 82.33 81.66 82.33 SF 5 10 Zoi Sadowski-Synnott 80.33 82.00 82.00 SF 6 6 Silvia Mittermüller 80.00 15.33 80.00 7 37 Ty Walker 18.66 79.00 79.00 8 7 Miyabi Onitsuka 76.66 60.00 76.66 9 19 Carla Somaini 17.00 76.33 76.33 10 15 Isabel Derungs 74.33 64.66 74.33 11 14 Šárka Pančochová 14.66 69.66 69.66 12 32 Nadja Flemming 55.66 67.00 67.00 13 18 Elena Könz 63.33 21.33 63.33 14 36 Lea Jugovac 50.00 33.00 50.00 15 33 Natalie Good 12.00 44.66 44.66 16 27 Asami Hirono 21.00 20.00 21.00 17 23 Kirra Kotsenburg 15.00 DNS 15.00 28 Anastasia Zhukova DNS DNS DNS

Semi-final The following are the results of the semi-final. Rank Bib Name Country Run 1 Run 2 Best Notes 1 9 Jessika Jenson 82.00 24.75 82.00 Q 2 10 Zoi Sadowski-Synnott 23.00 69.00 69.00 Q 3 3 Cheryl Maas 29.75 55.25 55.25 4 35 Antonia Yañez 32.50 29.50 32.50 5 24 Kjersti Buaas 22.50 28.50 28.50 6 17 Queralt Castellet 19.00 16.25 19.00

Final The following are the results of the finals. Rank Bib Name Country Run 1 Run 2 Run 3 2 Best 1 Anna Gasser 89.50 JNS 100.00 189.50 2 Enni Rukajärvi 79.50 85.75 JNS 165.25 13 Silje Norendal 85.25 77.50 JNS 162.75 10 Zoi Sadowski-Synnott 75.00 JNS 75.25 150.25 9 Jessika Jenson 65.00 78.00 JNS 143.00 11 Laurie Blouin JNS 92.00 28.00 120.00

References