The Bank of America Chicago Marathon returns to the Windy City on Sunday, October 11, 2026, when more than 50,000 runners and an even larger wave of spectators descend on downtown Chicago for one of the world's biggest road races. This year's edition arrives with a headline-making twist: a rerouted section through the Loop that skips the iconic State Street stretch past the Chicago Theatre because of ongoing construction. For travelers building a marathon weekend, the 2026 race pairs that fast, famously flat course with a deep elite field headlined by defending champion Jacob Kiplimo and the long-awaited return of Kenya's Brigid Kosgei.
The Big 2026 Change: A Reroute Off State Street
The biggest piece of news for anyone following the 2026 Chicago Marathon is a small but meaningful course adjustment. Because of construction and street closures on State Street in the Loop, runners will no longer make the turn down State Street past the landmark Chicago Theatre, a moment that has long been a signature of the race's early miles. Instead, the field detours around the closed stretch, a change organizers confirmed in the days leading up to race weekend. For first-time visitors, that simply means one more reason to study the official course map before race day, especially if you plan to stake out a viewing spot near the Loop.
The Route: 26.2 Miles, 29 Neighborhoods, Zero Big Hills
The Chicago Marathon is famous for being fast. The 26.2-mile course is almost entirely flat, with a maximum elevation change of roughly 30 feet and wide, sweeping city streets. That profile is exactly why the race has produced seven world records and countless personal bests over the years. The route loops through 29 of Chicago's most culturally distinct neighborhoods, from Lincoln Park and Wrigleyville up north to Pilsen, Chinatown, Bronzeville, and the South Loop on the back half. Expect mariachi bands in Pilsen around mile 19 and lion dancers in Chinatown near mile 21. The race starts and finishes in Grant Park, with the elite start set for 7:30 a.m. local time.
A Course Built for Records
Chicago's reputation as a record-breaker is well earned. In 2023, Kenya's Kelvin Kiptum, then just 23 years old, ran 2:00:35 to set the men's marathon world record on these very streets, becoming the first man to dip under 2:01 in an official race. The course has generated seven world records in its history, and the event has grown from a modest field of about 4,200 runners in its early years to one of the largest marathons on the planet today. That combination of history and speed is a big part of why runners from all over the world circle October on their calendars.
Race Weekend Timeline: Expo to Finish Line
Planning the logistics is where most travelers start. Packet pickup happens at the free, three-day Abbott Health and Fitness Expo at McCormick Place: Thursday, October 8 from 10 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. Every participant must pick up their own bib and timing device in person, so build the expo into your itinerary. On race day, streets along the course close to traffic starting at 6 a.m. and reopen on a rolling basis through the afternoon, generally wrapping up by about 4 p.m. No-parking zones along the course are enforced as early as 1 a.m. Sunday morning, so leave the car behind.
Stars to Watch: Kiplimo Defends, Kosgei Returns
The 2026 elite field is one of the deepest in years. Uganda's Jacob Kiplimo returns to defend his crown after winning the 2025 race in 2:02:23, and he arrives with a personal best of 2:00:28 set earlier in 2026. He is joined by Belgium's Bashir Abdi, a two-time Olympic medalist, in a men's field that boasts six runners who have broken 2:04. On the women's side, Ethiopia's Hawi Feysa is back to defend her 2025 title, while Kenya's Brigid Kosgei, one of the fastest women in history with a 2:14:04 personal best, returns to Chicago for the first time since 2019. Sharon Lokedi rounds out a Kenyan contingent aiming for the podium. For spectators, the elite battles through the Loop and back toward Grant Park are the weekend's marquee moments.
Turning the Race Into a Chicago Getaway
Chicago is one of the easiest major marathons to turn into a full city break, and the race-weekend calendar makes it simple. Before race day, take an architecture boat tour along the Chicago River, widely considered the best way to see the skyline, then stroll the Riverwalk, snap a photo at The Bean in Millennium Park, or ride the Centennial Wheel at Navy Pier. Museums are a strong bet for the day after the race, when your legs will want a break: the Art Institute, the Field Museum, the Shedd Aquarium, and the Adler Planetarium all cluster near the lakefront. When it comes to food, save room for Chicago deep-dish pizza at spots like Gino's East or Lou Malnati's. For getting around, the CTA trains are the simplest way to reach the expo and the start area, and the South Shore Line offers a convenient park-and-ride option for visitors coming from Indiana. One golden rule from locals: do not drive downtown on race morning, as closures start early and garages fill fast.
What Happens Next: Registration and the Road Ahead
If you are already thinking about 2027, it helps to know how entry works. Runners can secure a spot through a general lottery, by meeting a time-qualifying standard, or through guaranteed-entry programs, such as for runners who have completed five or more Chicago Marathons in the last decade. For 2026, the time-qualifying standards were tightened by roughly five minutes, with men aged 16 to 34 needing a 2:50:00 marathon and women in the same bracket needing 3:20:00. The qualifying window for guaranteed and time-based entry runs from January 1, 2025 through October 29, 2026. On race day, the forecast is shaping up to be sunny and seasonable, with morning lows in the low 50s climbing into the low-to-mid 70s, typical and generally favorable October conditions for a fast race.
Key Takeaways
- Race day: Sunday, October 11, 2026, with the elite start at 7:30 a.m. from Grant Park.
- Course change: runners skip State Street in the Loop due to construction, bypassing the Chicago Theatre.
- Course profile: flat and fast, 26.2 miles through 29 neighborhoods with only about 30 feet of elevation change.
- Elite field: Jacob Kiplimo defends the men's title, while Brigid Kosgei returns for the first time since 2019.
- Packet pickup: Abbott Health and Fitness Expo at McCormick Place, October 8 through 10.
- Travel tips: book a river architecture tour, use CTA trains instead of driving, and pack for sunny fall weather in the 50s to 70s.
