Chicago Lakefront Ultras

Chicago Lakefront Ultras

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Grassroots Ultra Marathon that winds along the Chicago Lakefront path, with views of Chicagoโ€™s skyline.

The Chicago Lakefront Ultras is a grassroots ultra offering both a 50K and 50 mile distance. The race takes place on Chicagoโ€™s beautiful Lakefront Path and is one of the flattest ultra marathons around.

03/30/2026

Congratulations to all our finishers yesterday, amazing performances from first time ultra achievers and experienced runners alike! We have a new race record holder in the 50k, Jeremy Arthur (NY), with a blazing fast time of 2:54:07!!!

Thanks so much to our fantastic volunteers who make this event possible!

Full results posted at runrace.net/clu. Fall race to be held on 10/31, registration now open. ๐Ÿƒโ€โ™€๏ธ๐Ÿƒ

03/23/2026

๐Ÿ“ฃ Registration for Saturday's Chicago Lakefront Ultras and Half Marathon will close on Thursday, 3/26 at 5:00! ๐Ÿƒโ€โ™€๏ธ๐Ÿƒ

https://runrace.net/clu

11/03/2025

Congratulations to all our finishers yesterday on a gorgeous day for a run!! Full race results at runrace.net/clu.

Overall winners ๐Ÿ†:

50 Mile
Nolan McKenna. 5:16:28
Rachel Burke. 7:17:41

50k
Brian Robinson. 3:38:10
Marina Dragatsis. 4:16:37

Reminder that the Spring race is March 28th, registration is open!

11/01/2025

Race Day!!

02/28/2025

Winter is waningโ˜ƒ๏ธ, clocks'll be springing forwardโฐ, and Chicago Lakefront Ultras is approaching๐Ÿƒ๐Ÿƒโ€โ™‚๏ธ! Join us in Jackson Park for our 25th annual springtime ultra running 50K adventure, or opt for event distances of our competitive Half Marathon or fully supported 20.7-mile Buildup Run. Details, Registration, Connect at:
https://RunRace.net/clu/

GotSneakers - A Zero-Waste Sneaker Recycling Company 11/11/2024

Thank you runners and volunteers for making the 2024 Fall Chicago Lakefront 50/50 another huge success! One of the ways we are trying to be GREEN and help the environment is to collect used running shoes to keep them out of landfills. A number of runners brought their old running shoes, we collected 14 pairs, and shipped them off to GotSneakers: https://gotsneakers.com/
These shoes will be reused and/or repurposed and will not be thrown away. You can start your own collection by going to the website and getting a free postage paid FedEx bag to ship your athletic shoes to them - no need to wait for the next Chicago Lakefront Ultra race! Thanks again and we can't wait to see you at the next race.

GotSneakers - A Zero-Waste Sneaker Recycling Company Request a Sneaker Recycling Kit from GotSneakers and send in your unwanted sneakers to be responsibly reused or recycled.

10/27/2024

Chicago Lakefront 50/50 is going CUPLESS! HydraPak is our new Cupless Racing Partner and is providing FREE SpeedCups to all runners. HydraPak is committed to helping reduce waste generated at running events and this is one of the ways they are helping out. Check out this short video about cupless racing as well as the best practice guide below - https://youtu.be/MCPmQKvK26U

We hope to see you on the Chicago lakefront on Saturday, November 2nd for this year's 50/50 race!

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Lake Shore Drive
Chicago, IL
60640