Since 1977, the race has overtaken the city’s streets every fall in a stampede of athleticism, grit, and antichafing balm. Here’s how all that pavement pounding adds up.

19.4 million

Collective miles run


Times it was downgraded to a half marathon (because of sponsorship woes in 1987)


Increase in the registration fee over four decades


Temperature at the start of the 1988 marathon, the coldest ever


People (all men) who’ve completed every race

5.1 million

Ounces of Goose Island 312 guzzled by runners at the finish line