On April 19, 1907, a hundred thousand people lined up to watch the eighth running of the Boston Marathon. At the start of the race, more than one hundred runners surged forward, and at the end, Tom Longboat won it in a record-breaking 2 hours, 24 minutes and 24 seconds. He became the most famous runner in the world, yet faced scrutiny and criticism of every part of his life, from his revolutionary training techniques to his Indigenous heritage.