Pedzisa mutsara unotevera: Gagnon akawana nzvimbo yake yokutanga paWorld Cup muna March 2012, nzvimbo yechitatu mujaho re slalom muÅre, kuSweden. Kukunda kwake kwekutanga kwaive muna Ndira 2014, chiitiko chakabatanidzwa kuAltenmarkt, Austria. yaive yekutanga podium yeCanada muWorld Cup yakabatanidzwa mumakore makumi matatu. Zuva rakapfuura racho akawana mapoinzi ake okutanga paWorld Cup mukudzika makomo panzvimbo imwe cheteyo. Mwaka iwoyo akatorawo gumi rake rekutanga reWorld Cup mu super-G, achipedza chegumi uye chechitanhatu mumakwikwi muLake Louise neSt. Moritz zvichiteerana. PaMitambo yeOlympic yeZima, Gagnon akadonha kunze kwomujaho we slalom wemubatanidzwa, achibvisa papfudzi rake, asati akundikana kupedza super-G uye giant slalom, uye akachengetedza nzvimbo yechipfumbamwe mu
slalom. Akapedza ari gumi nematatu mumakwikwi eWorld Cup uye ari wechitanhatu mu slalom.