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The Marathon's Odd Distance of 26.2 Miles Was Set to Please British Royalty
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The Marathon's Odd Distance of 26.2 Miles Was Set to Please British Royalty

March 28, 2026 · 3 min read

The Fact

The total distance of a marathon (26.2 miles) was standardized in 1908 so the race could finish in front of the Royal Box at Windsor Castle.

An Ancient Race With an Oddly Specific Distance

Ask most people why a marathon is 26.2 miles, and they will probably mention something about an ancient Greek soldier running from Marathon to Athens to announce a military victory. The story is real — the legend of Pheidippides, who allegedly ran approximately 25 miles from the battlefield to Athens and then died, is a genuine piece of classical tradition. But the specific distance of 26.2 miles has nothing to do with ancient Greece. It was determined in London in 1908, for reasons that had everything to do with the British Royal Family and the layout of Windsor Castle.

The Marathon Distance Before 1908

The modern marathon was revived at the first modern Olympic Games in Athens in 1896, where the distance was approximately 40 kilometers (about 24.85 miles). This was a rough approximation of the legendary Pheidippides route, not a precise measurement. Subsequent Olympic marathons varied in length — the 1900 Paris marathon covered about 40.26 km, the 1904 St. Louis marathon a different distance again. There was no standardized marathon distance.

The 1906 intercalated Athens Olympics used a distance of 41.86 km. The 1908 London Olympics changed everything.

What Happened at Windsor Castle

For the 1908 London Olympics, marathon planners decided that the race should start at Windsor Castle and finish at the Olympic Stadium in White City. This provided a dramatic setting for the race start and a clear finish at the main venue. The distance from the start line — positioned beneath the window of the Royal Nursery so that the young princes and princesses could watch the runners set off — to the entrance of the Olympic Stadium was 26 miles.

The finish line inside the stadium was then positioned in front of the Royal Box, where King Edward VII and Queen Alexandra were seated. The track distance from the stadium entrance to the Royal Box added approximately 385 yards, bringing the total distance to 26 miles and 385 yards — exactly 26.2 miles.

The resulting race produced one of the Olympics' most memorable moments: the Italian runner Dorando Pietri entered the stadium first but collapsed multiple times near the finish line and was disqualified after officials helped him across. The American runner John Hayes was awarded the gold medal. The drama of Pietri's collapse attracted enormous public attention and made the marathon race internationally famous.

Standardization and the Permanent Distance

The 26-mile 385-yard distance was not immediately adopted as standard. Different races used different distances throughout the next decade. It was not until 1921 that the International Association of Athletics Federations (now World Athletics) formally standardized the marathon distance at 26 miles 385 yards — 42.195 kilometers — making the 1908 London distance the permanent international standard.

The decision was partly a matter of precedent and partly a recognition that the 1908 race had achieved such cultural prominence that its specific distance had become definitively "the marathon." Every marathon run today — from the New York City Marathon to the Boston Marathon to Olympic competitions — is run at a distance fixed by the location of the Royal Box in Windsor Castle's Olympic Stadium in 1908.

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FactOTD Editorial Team

Published March 28, 2026 · 3 min read

The FactOTD editorial team researches and verifies every fact before publication. Our mission is to make learning effortless and accurate. Learn about our process →

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