In just under a month's time, scores of runners will traverse 26.2 miles in the Bank of America Chicago Marathon, one of the nation's most distinguished racing events.

Come Sunday, Oct. 12, thousands will descend on neighborhoods across the city to watch top athletes compete or cheer on loved ones in the 47th iteration of the race. As the big event and race weekend near, spectators and runners alike may be curious about what exactly is planned and when.

Here's what you need to know about this year's Bank of America Chicago Marathon, including race start times, packet pick-up information and more:

Thursday, Oct. 9

11 a.m. to 6 p.m. - Abbott Health & Fitness Expo; Packet pick-up at McCormick Place's Lakeside Center

Friday, Oct. 10

9 a.m. to 6 p.m. - Abbott Health & Fitness Expo; Pack

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