The Greatest Race on Earth

by Charlotte McGlone
Chapel Hill, NC, United States

An epic race spanning 1,150 miles of the world’s toughest terrain. Just you and your dogs crossing rugged mountains, isolated prairies, frozen rivers, and dense, snowy forests.

The Iditarod

Every year, around 50 to 70 teams, each one averaging 16 dogs and a musher (the human in charge of the sled), compete in the journey from Anchorage to Nome, Alaska. It takes days to finish. The most recent record was set in 2017, when Mitch Seavey crossed the finish line at 8 days, 3 hours, 40 minutes, and 13 seconds.

The Iditarod is unlike many other races in that it gives a special prize to the last person to finish. The Red Lantern for persistence is given to the team that spends the longest time on the track. The record for the slowest time ever is 32 days, 15 hours, and 9 minutes. Can you imagine spending that much time in a race?


The Iditarod has a history that is essential to the culture of America’s northernmost state. In the early 1900s, when thousands rushed to Alaska in search of gold, they traveled and received supplies along the Iditarod Trail, which was only accessible by dog sled given its freezing and snowy conditions. Even before the gold rush, mushing was a central part of life in the North. Still today, as modern transportation becomes more common, it remains the fallback.

One Heroic Dog

The most famous story of dog sled heroism illustrates its importance. Immortalized by the movie Balto, mushers and their dogs rescued the town of Nome in 1925 when it was threatened by an outbreak of disease. The crucial medicine was delivered only because of the mushers’ determination and their dogs’ faithful service.

Recognizing this heroic feat, Wasilla resident Dorothy G Page, wanted to find a way to preserve mushing’s place in history. She was the driving force the modern Iditarod race, named after the famous trail, which was first run in its entirety in 1973.

Canine Athletes

Of course, the essential part of the race is the dogs. Working in tandem with each other and their human captain, these animals can achieve incredible feats. They can run for hours at speeds of 20 miles per hour and are incredibly strong. To give you an example of their power, one dog dragged over half a ton in the canine version of a tractor pull.

The set up of the team is very important. Mushers carefully select dogs for the following roles

  • lead dog — in charge of responding to the musher’s commands, setting the pace, and choosing a path
  • point dogs — the second in command
  • swing dogs — several of these to help pull
  • wheel dogs — closest to the sled, often the sturdiest and strongest

Mushers also consider racing breeds such as

  • Alaskan huskies — the most popular breed, weighing between 40 and 60 pounds, lean yet strong
  • Alaskan malamute —  weighing 75 to 85 pounds, usually chosen as lead dogs, wheel dogs, or for pulling especially heavy freight
  • Chinooks
  • Samoyeds
  • Greenland dogs

Pit Stops

The mushers pay special attention to the needs of their dogs, and at the 27 checkpoints located along the trail, they are given the opportunity to rest their dogs or get veterinary attention. The teams that race in the Iditarod are great examples of humans and animals working together to achieve amazing things.

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Math Questions

  1. How many years has it been since the first Iditarod?
  2. If a sled dog needs to eat about 10,000 calories a day and a pound of meat contains about 750 calories, how much does an average dog need to eat every day? How much meat must a sled carry for a team of dogs to make it from one checkpoint to the next?
  3. If the sled dogs travel 150 miles each day, how long would it take the sled dogs (in days) to finish the Iditarod race?
  4. If 56 teams entered in the race, how many total dogs would be in the race if each team had 16 dogs?

Write your own math question and submit it here

Extension Questions

What do you think about dogs being used in this grueling race? Does it seem unfair to treat them this way or not? Why?

Write your own extension question and submit it here


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