Go Marathon Run

The 2025 Chicago Lakefront Ultra Fall Version will take place on November 1, 2025, at the picturesque Foster Avenue Beach, located at 5200 N Lake Shore Drive, Chicago, IL 60640. Participants can expect typical fall weather in Chicago, with daytime temperatures averaging around 50°F (10°C) and a chance of crisp, cool breezes off the lake. This event features challenging ultra-distance races, including a 50-mile and a 50K race, providing runners with an opportunity to test their endurance along the scenic lakefront. Participants will be supported with aid stations, and will have access to drop bags, making it a well-organized experience for all. Awards will be presented to top finishers, including buckles for the 50-mile race, medals for the 50K, and pint-glass awards by age groups.

What distances are available for this event?

The 2025 Chicago Lakefront Ultra offers two main distances: a 50-mile race starting at 7:00 AM and a 50K race starting at 8:00 AM. An early start for the 50-mile race is available by request only.

How much does registration cost?

Registration fees are as follows:

• →50 Mile: $75 for early registration, $85 for mid-registration, and $95 for late registration.
• →50K: $65 for early registration, $75 for mid-registration, and $85 for late registration.

Volunteer registration is free of charge.

What is the registration timeline?

Registration opened on March 5, 2025, at 6:00 AM CDT, and will close on October 30, 2025, at midnight CDT. Volunteer registration closes on November 1, 2025, at noon CDT.

What facilities are available at the venue?

Participants will find several amenities at the venue, including aid stations stocked with water, energy drinks, soda, and food. There will also be a drop bag area at the start/finish line, and participants are encouraged to bring their own hydration.

What awards will be given to participants?

Awards for the event include buckles for 50-mile finishers, medals for 50K finishers, and pint-glass awards by 10-year age groups. Special awards will also be given to the top overall finishers.

When and where can I pick up my race packet?

Packet pickup will be available onsite only on race day, November 1, 2025.

What is the time limit for the races?

The time limit for the 50-mile race is 11 hours, and for the 50K race, it is 9 hours.

What is the minimum and maximum age to participate?

The minimum age for participants is 18 years old, and there is no maximum age limit; participants can be up to 99 years old.

How can I register for the event?

Registration can be completed online via RunRace.net/clu, where potential participants can select their desired race distance and complete their registration.

Is there parking available at the venue?

Information about parking availability is not specified, so participants are encouraged to check local resources for parking options near Foster Avenue Beach.

For further questions or assistance, participants can reach out via email at info@chicagoultra.org.