The race appears to be a duel between 25-year-old Dallas Seavey, who is making a bid to become the Iditarod's youngest champion, and Aliy Zirkle, who is trying to become the first woman to win since 1990.
Typically, Iditarod champions are men in their 40s or late 30s. This year's top 15 defies those demographics.
"Wasn't it Bob Dylan who coined (the phrase), 'The times they are a-changing'?" King wrote on Facebook.
The top 15 include four women. Zirkle leads the way in second place, Sigrid Ekran is 10th, DeeDee Jonrowe is 13th and Michelle Phillips 14th.
The top 15 also include three mushers in their 20s -- Seavey, 23-year-old Pete Kaiser (6th place) and 26-year-old Mike Williams Jr. (12th place) -- and six in their 30s, including five 36 or younger.
The 36-and-under group includes Aaron Burmeister (3rd place), Ramey Smyth (7th) and Ray Redington Jr. (8th), all 36; and Ekran and Brent Sass (15h) are 32.
Three mushers are in their 40s -- Zirkle, 41; John Baker, 49 (4th place) and Phillips, 43.
And three are over 50 -- Jonrowe, 58, Mitch Seavey, 52 and Sonny Lindner, 63.
Should Dallas Seavey win, he would replace Rick Swenson and Carl Huntington as the race's youngest champion. Huntington was 26 when he won the second edition of the race in 1974 and Swenson was 26 when he won the first of five Iditarods in 1977.
Others to win the race while in their 20s are Libby Riddles, who was 28 when she won in 1985, and Rick Mackey, who was 29 when he won in 1983. Susan Butcher was 31 when she won the first of her four titles.