The 2024 Chicago Marathon begins on Sunday. See which streets will be closed.

CHICAGO (CBS) – The 2024 Bank of America Chicago Marathon begins in just a few hours, with more than 50,000 runners from around the world taking part in the annual tradition.

Many of these runners stopped by McCormick Place on Saturday to pick up their official marathon bib numbers along with their swag bags – many of them excited but also eager to hit the pavement.

The marathon starts just after 7 a.m. Sunday in Grant Park, where the 26.2-mile trek begins through the city and winds through 29 neighborhoods, where you can admire some of Chicago’s most picturesque landmarks.

“The training is hard. I completed two 20 mile runs. This was the longest route I’ve done, but I like training in Boston because it’s so hilly. I think it prepares me for something flatter,” said runner Riley Brook.

“I’m a little worried. I’m a little nervous. The first time. My training went well, but it could have gone better,” said runner Ruben Robelin.

“I had my wedding this year, so training has slowed down a bit, but hopefully it will be enough to compete in the race tomorrow,” said runner Danielle Xu

With all the excitement building, there’s also a less exciting part to talk about: road closures that will impact large parts of the city.

While some road closures are already in effect around the start and finish lines, restrictions along much of the marathon route come into effect on Sunday morning.

Road closures in the Grant Park area began Monday, September 30, with the closure of the Balbo route from Columbus to DuSable Lake Shore Drive at 10 a.m. Additional race day road closures in the start/finish line area are expected throughout the weekend, including:

• Wednesday October 9th: Jackson Dr. by Columbus Dr. to DuSable Lake Shore Drive closes at 10 a.m. and reopens at 6 a.m. Monday, Oct. 14
• Thursday, October 10th: Balbo Dr. from Michigan Ave. to Columbus Dr. closes at 4 a.m. and reopens Monday, October 14 at 3 p.m
• Thursday, October 10th: Columbus Dr. from Ida B. Wells to Roosevelt Rd closes at 4 a.m. and reopens Monday, October 14 at 3 p.m
• Friday, Oct. 11: Columbus Drive from Monroe to Jackson St. will close at 4 a.m. and reopen Sunday, Oct. 13 at 8 p.m
• Friday, October 11th: Congress Plaza on Michigan Ave. (Van Buren St. to Harrison St.) closes at 4 a.m. and reopens Sunday, Oct. 13 at 8 p.m
• Friday, October 11: Ida B. Wells from Michigan Ave to Congress Plaza closes at 4 a.m. and reopens Sunday, October 13 at 8 p.m
• Friday, October 11: Ida B. Wells from Congress Plaza to Columbus Dr. closes at 4 a.m. and reopens Sunday, October 13 at 8 p.m
• Friday October 11th: Jackson Dr. from Michigan Ave. to Columbus Dr. closes at 4 a.m. and reopens Sunday, October 13 at 8 p.m
• Saturday, October 12th: Columbus Dr. Randolph to Monroe St. will close at 6 a.m. and open Sunday, Oct. 13 at 2 p.m
• Saturday, October 12: Roosevelt Rd. from Columbus Dr. to DuSable Lake Shore Drive will close at 11 a.m. and open Sunday, Oct. 13, at 6 p.m
• Saturday, October 12: Monroe St. from Michigan Ave. to Columbus Dr. will close at 4 a.m. and open at 2 p.m. on Sunday, October 13th
• Saturday, October 12: Monroe St. from Columbus Dr. to DuSable Lake Shore Drive will close at 4 a.m. and open at 5 p.m. Sunday, Oct. 13
• Sunday, October 13th: Columbus Dr. by McFetridge Dr. to Roosevelt Road will close at 4 a.m. and open at 6 p.m
• Sunday, October 13th: Michigan Ave. from Madison to 9th St. will close at 4 a.m. and open at 9 a.m
• Sunday, October 13th: Roosevelt Rd. from Michigan to Columbus Dr. closes at 4 a.m. and opens at 6 p.m
• Sunday, October 13th: Michigan Ave. from 9th St. to Roosevelt Rd will close at 5:30 a.m. and open at 4 p.m
• All roads will be fully reopened by 6am on Monday 14 October

Race day road closures along the route will begin at approximately 7am on Sunday October 13th and are expected to reopen at 4:30pm or when deemed safe.

A full list of closures can be found here. Expected street opening times can be found here and a map of the race here.

Most roads closed for the marathon will reopen around 4:30 p.m. on Sunday.

With heavy traffic and congestion expected to bring large parts of the city to a standstill on Sunday, officials are encouraging everyone to use public transportation.