Every October, Chicago transforms into one of the greatest stages in all of running. Streets that normally carry traffic fill instead with tens of thousands of runners chasing personal bests, finishing lines, and once-in-a-lifetime memories. On Sunday, October 11, 2026, the 48th edition of the Bank of America Chicago Marathon takes place, and it promises to be the largest field in the event’s history.
Whether you plan to run it, cheer from the sidelines, or simply experience one of the world’s most celebrated sporting events, this guide gives you everything you need to make the most of the day.
Race Date and Background
The 2026 edition falls on Sunday, October 11, 2026. This is the 48th running of the modern Chicago Marathon, which began in 1977 under the original name the Mayor Daley Marathon. The race holds a coveted place among the Abbott World Marathon Majors alongside Tokyo, Boston, London, Berlin, and New York City.
The 2025 race set a finisher record with 54,351 runners crossing the line. The 2026 field targets a similar number, making it one of the largest annual road races anywhere in the world. Additionally, the race has produced more marathon world records than any other World Marathon Major course, including Kelvin Kiptum’s extraordinary 2:00:35 in 2023.
October in Chicago typically brings cool, dry conditions, with temperatures often sitting in the low 50s Fahrenheit at the start. That kind of weather suits fast running. However, Chicago’s weather is famously unpredictable. The 2007 race saw temperatures hit 88°F, causing serious heat-related problems. Runners and spectators alike should check forecasts closely in the days leading up to race day.
Start Times: When the Race Begins
The race launches in waves from Grant Park in the heart of downtown Chicago. Knowing the wave schedule matters whether you are a runner getting into your corral or a spectator trying to position yourself along the route.
The full start schedule runs as follows:
- 7:20 a.m.: Men’s Professional Wheelchair start and Wave 1 corrals close
- 7:21 a.m.: Women’s Professional Wheelchair start
- 7:23 a.m.: Handcycle start
- 7:30 a.m.: Elite runners and Wave 1 start, covering corrals A through E
- 8:00 a.m.: Wave 2 start, covering corrals F, G, H, and J
- 8:35 a.m.: Wave 3 start, covering corrals K, L, M, and N
- 9:30 a.m.: Spectator access to Grant Park opens and the 27th Mile Post-Race Party begins
Spectators do not have access to the race start or finish areas within Grant Park before 9:30 a.m. These zones are reserved exclusively for runners with race bibs, credentialed event staff, and ticketed guests. Therefore, plan to position yourself along the course itself before the first runners pass through your chosen spot.
The Race Route: 29 Neighborhoods and 26.2 Miles
The course is a loop, starting and finishing in Grant Park. It covers 26.2 miles through 29 of Chicago’s most distinctive neighborhoods. Net elevation change is close to zero, making it one of the flattest major marathon courses in the world.
The route divides naturally into three sections: a north loop, a west push, and a south stretch before returning downtown.
Runners leave Grant Park and enter the Loop, Chicago’s iconic business and retail district, in the opening miles. The streets here are framed by towering architecture. It is a dramatic opening to the race.
From the Loop, the course moves north through River North and Lincoln Park. Runners pass close to Lincoln Park Zoo around miles 7 to 9. This stretch through Boystown draws some of the most enthusiastic crowds of the entire race.
The course then turns west, passing through Wicker Park and Bucktown before heading south. Around mile 11, runners pass through Greektown. This section often feels quieter than the northern stretch, which makes spectator support particularly meaningful there.
The route then moves south through Pilsen, one of the most culturally rich neighborhoods in the city. Mariachi bands and local crowds gather around mile 18 to 19, creating a wall of sound that arrives at exactly the point many runners need a lift. Shortly after, at mile 21, the course reaches Chinatown. Lion dancers, dragon drummers, and some of the loudest cheering on the entire course greet runners near the Chinatown Gate. This stretch lands right where many runners hit the wall, and the energy there is something special.
After Chinatown, the course turns north and heads back toward Grant Park for the finish on Columbus Drive.
The course time limit is 6 hours and 30 minutes. Runners must maintain approximately a 15-minute-per-mile pace to receive full on-course support from aid stations.
Best Spectator Spots Along the Course
One of the great things about this race is how accessible it is for spectators. More than 1.7 million people line the route each year, and with some planning, you can catch your runner at multiple points.
Here are the top viewing spots, organized by location:
- Mile 1: Grand Avenue between Columbus Drive and State Street. This is the earliest accessible spot outside Grant Park and gives you a first glimpse of the field.
- Mile 3 and Mile 12.5: Exit the Red Line at Grand Avenue. You can watch runners here and then travel back to see them again later in the race.
- Mile 7 to 9: Clark Street through Lincoln Park and Boystown. The crowd energy here is consistently among the best on the course.
- Mile 11: Exit the Brown Line at Sedgwick Street and walk half a block north to North Avenue.
- Mile 13.5: Take a Brown, Pink, or Orange Line train to Washington/Wells and walk two blocks west to Wacker Drive.
- Mile 14 and 17: Exit the Blue Line at UIC-Halsted. Walk north on Halsted to Adams for Mile 14, or to Jackson for Mile 17 in Greektown.
- Mile 19.25: Exit the Pink Line at 18th Street and walk four blocks east to Loomis Street. This is the Pilsen section with mariachi music and huge local spirit.
- Mile 21.5: Exit the Red Line at Cermak-Chinatown. This is one of the most energetic points on the entire course and one of the most important places to be.
The Chicago Transit Authority makes it possible to move between multiple viewing spots throughout the morning. The CTA is the smartest way to navigate the city on race day. Driving is not recommended, as road closures affect a large portion of central Chicago.
Using the Official App to Track Your Runner
The Bank of America Chicago Marathon App, powered by Tata Consultancy Services, gives spectators the ability to track individual runners in real time. The 2026 version of the app will be available in advance of race weekend. Download it before you arrive so you can follow your runner’s progress and plan your movements along the course accordingly.
Spectator Conduct and Course Safety
The race organizers ask all spectators to respect a few important guidelines. The racecourse runs the full width of the street from curb to curb. Stepping onto the course is dangerous for both runners and those watching, so everyone must stay behind the barriers.
Participants cannot accept food or drinks from spectators on the course. This is a race rule, and offering items creates a risk of disqualification for the runner. Additionally, the event is a family-friendly occasion. The organizers expect respectful behavior from everyone in attendance, and course marshals and event staff are present throughout the route.
The Post-Race Party: 27th Mile
After the finish line, the celebration moves to Butler Field in Grant Park for the 27th Mile Post-Race Party. Spectator access to this area opens at 9:30 a.m. and the party continues until 4 p.m. This is the best place to meet your runner after they cross the line, as family and friends without bibs cannot access the finish area itself.
Before Race Day: The Abbott Health and Fitness Expo
Runners must collect their race bib and materials in person at the Abbott Health and Fitness Expo at McCormick Place, North Building. The expo runs on Thursday, October 8, from 11 a.m. to 6 p.m., Friday, October 9, from 9 a.m. to 6 p.m., and Saturday, October 10, from 9 a.m. to 6 p.m. Runners need to bring photo ID. No one else can collect a bib on their behalf. Any runner who misses the expo cannot participate in the race.
Conclusion
The Bank of America Chicago Marathon on October 11, 2026, offers one of the most exhilarating experiences in all of sport. The race starts in waves from Grant Park between 7:20 a.m. and 8:35 a.m., with the elite and Wave 1 field launching at 7:30 a.m. The course travels 26.2 miles through 29 Chicago neighborhoods, offering a nearly flat route that has produced more world records than any other major marathon. Spectacular crowd spots stretch from the Loop to Lincoln Park, Pilsen, and Chinatown, all reachable by CTA rail.
Spectators gain access to Grant Park from 9:30 a.m. for the Post-Race Party at Butler Field. With over 1.7 million people lining the streets and a field approaching 55,000 runners, this is the kind of event that reminds you why people run and why cities matter. Plan early, use the app, ride the CTA, and get ready for a Sunday that will stay with you for a long time.
Frequently Asked Questions
When does the Chicago Marathon 2026 take place and where does it start?
The race takes place on Sunday, October 11, 2026. It starts in waves from Grant Park in downtown Chicago, with the elite and Wave 1 field beginning at 7:30 a.m. CT and the final wave starting at 8:35 a.m. CT.
How many neighborhoods does the race course pass through?
The course travels through 29 Chicago neighborhoods over 26.2 miles. It forms a loop, starting and finishing in Grant Park, and passes through areas including the Loop, Lincoln Park, Boystown, Wicker Park, Pilsen, and Chinatown.
What are the best spots for spectators to watch the race?
Top viewing spots include Grand Avenue near Mile 1, Clark Street through Boystown around Miles 7 to 9, Pilsen at Mile 19, and Chinatown at Mile 21. The CTA rail system connects all of these locations, making it practical to watch your runner at three or four points during the race.
Can spectators access Grant Park on race day?
Spectators cannot enter the Grant Park start or finish zones before 9:30 a.m. Only runners with official bibs and credentialed staff can access those areas in the morning. Spectator access to Grant Park opens at 9:30 a.m. for the Post-Race Party at Butler Field.
How can I track my runner on race day?
The official Bank of America Chicago Marathon App, powered by Tata Consultancy Services, offers real-time runner tracking. Download it ahead of race weekend and use your runner’s bib number to follow their progress and estimate when they will reach different points along the course.
