In 2018 and 2019, Seavey also competed in Europe's longest sled dog race, Norway's Finnmarksløpet.

[4] Dallas Seavey is the youngest musher to compete in the Iditarod, beginning his first race on March 5, 2005, the day after turning 18.

[7] Seavey's 2014 finish time broke the previous record of 2011 winner John Baker by more than five hours.

[8] In 2015, Seavey won the Iditarod for a third time, in a race held from Fairbanks to Nome, with the official start moved due to a lack of snow in Southcentral Alaska.

Seavey denied any knowledge or involvement, speculating a rival had attempted to get him disqualified, and was ultimately cleared by the Iditarod Trail Committee.

[13] During the 2024 Iditarod, Seavey was given a two-hour time penalty for not properly gutting a moose he killed during the race.