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Attention... registration for this event closed on Thursday October 26th, 2023 - Noon (USCT). Special coupon codes may have ability to override established registration restrictions.
Race Information
Race Name:Chicago Lakefront Ultras 50/50
State:Illinois, United States
Posted:December 7th, 2022 7:25 pm
Last Update:December 10th, 2022 6:15 pm
Race: Logo
Event Information
Name of Event:Chicago Lakefront 50k
Date:Saturday October 28th, 2023
Start Time:8:00 am
Minimum Age:18
Maximum Age:99
Event Registration Schedule
Opened:Friday December 9th, 2022Start of Day
Deadline passed:Thursday August 31st, 2023Midnight $60.00
Deadline passed:Saturday September 30th, 2023Midnight $70.00
Deadline passed:Thursday October 26th, 2023Noon $80.00
Unless otherwise noted... Registration Dates & Times are based upon: U.S. Central Daylight Saving Time
This race features 3 events. Please checkmark to verify your registration intentions for:
Chicago Lakefront 50k 50 Kilometers
To choose a different registration, click its name below:
Chicago Lakefront 50 Mile • 50 Miles
Chicago Lakefront Ultras Volunteers • Volunteer 9 Hours
Step 1 of 2 - Participant Registration
First Name
Last Name
Address 1
Address 2
State / Province
Use 2 digit code for US and Canada
otherwise, leave blank.
[US Flag]  [Canadian Flag]
Country (only if outside of the U.S. and Canada)
Leave blank if address is within US or Canada.
Zip / Postal Code
Primary Phone Number
Required... please provide your primary number.
Other Phone
Optional... provide an alternate phone number.
Email Address
Participant's active Email Address... check for accuracy.
Participant's Date of Birth
Gender: M for Male, F for Female.

Emergency Contact Name
Emergency Contact Phone Number
Required... please provide a contact name and phone number of someone who is not running in the race as information which we may use in the unlikely event of an emergency.

Apparel Description
We're pleased to offer colorful gender-specific short-sleeve Sport-Tek (or similar) Tech shirts -or- high quality short-sleeve Cotton shirts to our preregistered participants for no additional charge. Shirt size selection guaranteed only to participants who register by 10 days in advance of our race date, ie: Wednesday - Noon. Past edition shirts are first-quality and do not have printed race date!
Shirt Selection
SelectItem NameSurchargeAvailable
Women X-Small Short-Sleeve Quality Cotton0
Women X-Small Short-Sleeve Tech Fabric0
Women X-Small Short-Sleeve Quality Cotton Past Edition1
Women X-Small Short-Sleeve Tech Fabric Past Edition3
Women Small Short-Sleeve Quality Cotton0
Women Small Short-Sleeve Tech Fabric0
Women Small Short-Sleeve Quality Cotton Past Edition4
Women Small Short-Sleeve Tech Fabric Past Edition3
Women Medium Short-Sleeve Quality Cotton0
Women Medium Short-Sleeve Tech Fabric2
Women Medium Short-Sleeve Quality Cotton Past Edition5
Women Medium Short-Sleeve Tech Fabric Past Edition4
Women Large Short-Sleeve Quality Cotton0
Women Large Short-Sleeve Tech Fabric0
Women Large Short-Sleeve Quality Cotton Past Edition1
Women Large Short-Sleeve Tech Fabric Past Edition5
Women X-Large Short-Sleeve Quality Cotton0
Women X-Large Short-Sleeve Tech Fabric0
Women X-Large Short-Sleeve Quality Cotton Past Edition2
Women X-Large Short-Sleeve Tech Fabric Past Edition2
Men X-Small Short-Sleeve Quality Cotton0
Men X-Small Short-Sleeve Tech Fabric1
Men X-Small Short-Sleeve Quality Cotton Past Edition1
Men X-Small Short-Sleeve Tech Fabric Past Edition1
Men Small Short-Sleeve Quality Cotton0
Men Small Short-Sleeve Tech Fabric1
Men Small Short-Sleeve Quality Cotton Past Edition2
Men Small Short-Sleeve Tech Fabric Past Edition1
Men Medium Short-Sleeve Quality Cotton0
Men Medium Short-Sleeve Tech Fabric0
Men Medium Short-Sleeve Quality Cotton Past Edition3
Men Medium Short-Sleeve Tech Fabric Past Edition8
Men Large Short-Sleeve Quality Cotton0
Men Large Short-Sleeve Tech Fabric0
Men Large Short-Sleeve Quality Cotton Past Edition6
Men Large Short-Sleeve Tech Fabric Past Edition19
Men X-Large Short-Sleeve Quality Cotton0
Men X-Large Short-Sleeve Tech Fabric0
Men X-Large Short-Sleeve Quality Cotton Past Edition2
Men X-Large Short-Sleeve Tech Fabric Past Edition26
Men XX-Large Short-Sleeve Quality Cotton0
Men XX-Large Short-Sleeve Tech Fabric$3.000
Men XX-Large Short-Sleeve Quality Cotton Past Edition$3.001
Men XX-Large Short-Sleeve Tech Fabric Past Edition0
Race Buff/Neck Gaiter
No Shirt
Upgrade to Long-Sleeve Shirt?
Optional... would you prefer a long-sleeve race shirt? Select 'Yes' and we'll reserve your chosen size in Long-Sleeve for a nominal (our cost) charge. Note: this option may be available only until 10 days in advance of our race date. If you're choosing a Past Edition and would like it in Long-Sleeve be sure to select 'Yes'!

Did you Finish a Chicago Lakefront Ultras Event This/Last Year?
Optional... did you race with us this/last calendar year, and successfully complete an event distance of Chicago Lakefront Ultras 50K or 50 Mile? If so... choose your finishing distance. If not... leave blank. Note: We have records of all finishers!

Special Class: First Finish at this Distance?
Optional... upon successful completion, will this be your first finish at a race of this distance? Leave blank if you've successfully raced and completed this distance, or beyond.

What is your Predicted Finish Time?
Required... help with our planning by predicting your finish time for your selected event distance.

What, if any, are your Carpooling Plans?
Required... help with our planning by selecting the choice that best matches your plans. We encourage carpooling to our Start/Finish area, as parking space can be limited.

Waiver and Release Waiver and Release THIS IS AN IMPORTANT WAIVER OF LIABILITY. READ CAREFULLY BEFORE SIGNING! In consideration of your accepting this entry and other good and valuable consideration the receipt and adequacy of which I hereby acknowledge, I, the undersigned, intending to be legally bound, hereby, for myself, my family, my successors, assignees, heirs, executors and administrators, forever waive, release and discharge any and all rights, claims for damage, causes of action whether in law, equity or otherwise, known or unknown, that I or any of them may have against the Chicago Lakefront 50/50 (the "Event"), Chicago Ultramarathons LLC, Kemper Tech Inc, RunRace, JF Running LLC, the Chicago Park District, and members of the Chicago Park District Board, and the officers, agents, and employees of the Chicago Park District, individually and collectively, the City of Chicago, the State of Illinois, USA Track & Field, the Event race directors, all Event volunteers, all sponsors of the Event, both now and hereafter, and their officers, directors, employees, volunteers, independent contractors, agents and representatives, successors and assigns, for any and all injuries, illness or other harm suffered by me during, or as a result of, the Event. I understand that there are no refunds if the Event is canceled, if I cannot attend the Event, or for any other reason. The Event race directors reserve the right to cancel the Event and shall not be liable for any actual or consequential damages. I attest that I am physically fit and have sufficiently trained for the completion of the Event and that my physical condition has been certified by a licensed medical doctor. I am aware that running can be a dangerous activity, and that I am responsible for taking precautions for the possibility of running in warm, cold, or other extreme weather conditions, running on uneven surfaces, or any other potentially hazardous conditions. I will abide by the decision of any race official and the rules of Chicago Lakefront 50/50. I also agree to abide by any decision of an appointed race official or medical official relative to my ability to safely continue or complete the Event. I further assume, and will pay, my own medical and emergency expenses in case of an accident, illness or incapacity regardless of whether I have authorized such expenses. I am 18 years old or older. I hereby grant permission to Chicago Ultramarathons LLC, Kemper Tech Inc, RunRace, and JF Running LLC to use any photographs, videotapes, motion pictures, recordings or any other record of this event for any legitimate purpose, including commercial advertising. I have read this waiver carefully and understand it. I understand and agree to this Waiver and Release. * You must agree to this question to continue.
 Agree to waiver by checking here.
By agreeing to this waiver you submit to the terms and conditions as set forth by this event and certify that you have provided true and accurate information as requested through this registration process.
Coupon Code
Do you have a coupon or promo code? If so, please include it here.

The registration deadline for this Event has passed... registration is no longer available. Special coupon codes may have ability to override registration dates.
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