At the 2015 Biathlon World Championships in Kontiolahti, Finland in the 10 km Sprint event Nathan won Silver. He was the first Canadian male biathlete to medal at a World Championship.[2]
At the 2015 Biathlon World Cup event in Khanty-Mansiysk, Russia Nathan Smith won the first biathlon World Cup gold medal of his career[3] in the Men's 12.5 km pursuit race.
At the Nov. 29, 2015 IBU World Cup in Ostersund, Sweden Canada's Rosanna Crawford and Nathan Smith teamed up to win the silver medal in the season-opening single mixed relay. The top five results in this race were as follows: 1. Norway, 36:27.3; 2. Canada (Rosanna Crawford/Canmore, Alta., Nathan Smith/Calgary), 36:39.2; 3. Germany, 36:40.5; 4. Sweden, 36:51.7; 5. Russia, 37:09.1
At the 2016 Biathlon World Championships in Holmenkollen, Norway on March 12 Nathan Smith teamed up with Christian Gow, Scott Gow, and Brendan Green to win the bronze medal in the men's relay.[4][5]