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Attention... registration for this event closed on Thursday November 6th, 2025 - 8:00 pm (USCT). Special coupon codes may have ability to override established registration restrictions.
Race Information
Race Name:Paleozoic Trail Runs - Cambrian Fall III
Location:Palos Park
State:Illinois, United States
Posted:March 20th, 2025 9:46 am
Last Update:September 22nd, 2025 1:45 pm
 
Race: Logo
Event Information
Name of Event:Paleo-Camb 25-Km
Distance:25.00
Measurement:Kilometers
Date:Saturday November 8th, 2025
Start Time:9:30 am
Event Registration Schedule
Opened:Tuesday April 1st, 20256:00 am
Deadline passed:Thursday July 31st, 2025Midnight $65.00
Deadline passed:Tuesday September 30th, 2025Midnight $75.00
Deadline passed:Thursday November 6th, 20258:00 pm $85.00
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:
Paleo-Camb 25-Km 25 Kilometers
To choose a different registration, click its name below:
Paleo-Camb 50-Km • 50 Kilometers
Paleo-Camb Volunteer • 9 Hours
Step 1 of 2 - Participant Registration
First Name
 
Last Name
Address 1
Address 2
City
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
Sex
Gender: F for Female, M for Male, N for Non Binary, O for Other

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 gender-specific high-quality Short-Sleeve tech shirts to our preregistered participants for no additional charge (note: shirts tend to run 1/2+ size large so consider selecting a size smaller than your typical choice). 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
Count
Women X-Small Short-Sleeve0
Women X-Small Long-Sleeve$5.000
Women Small Short-Sleeve0
Women Small Long-Sleeve$5.000
Women Medium Short-Sleeve0
Women Medium Long-Sleeve$5.000
Women Large Short-Sleeve0
Women Large Long-Sleeve$5.000
Women X-Large Short-Sleeve0
Women X-Large Long-Sleeve$5.000
Men Small Short-Sleeve0
Men Small Long-Sleeve$5.000
Men Medium Short-Sleeve0
Men Medium Long-Sleeve$5.000
Men Large Short-Sleeve0
Men Large Long-Sleeve$5.000
Men X-Large Short-Sleeve0
Men X-Large Long-Sleeve$5.000
Race Beanie Hat
Race Buff / Neck Gaiter
Women X-Small Short-Sleeve Past Edition14
Women X-Small Long-Sleeve Past Edition$5.002
Women Small Short-Sleeve Past Edition21
Women Small Long-Sleeve Past Edition$5.0016
Women Medium Short-Sleeve Past Edition30
Women Medium Long-Sleeve Past Edition$5.0013
Women Large Short-Sleeve Past Edition26
Women Large Long-Sleeve Past Edition$5.0011
Women X-Large Short-Sleeve Past Edition15
Women X-Large Long-Sleeve Past Edition$5.003
Men Small Short-Sleeve Past Edition11
Men Small Long-Sleeve Past Edition$5.005
Men Medium Short-Sleeve Past Edition36
Men Medium Long-Sleeve Past Edition$5.000
Men Large Short-Sleeve Past Edition33
Men Large Long-Sleeve Past Edition$5.0016
Men X-Large Short-Sleeve Past Edition29
Men X-Large Long-Sleeve Past Edition$5.008
Men 2X-Large Short-Sleeve Past Edition$4.002
No Shirt
Upgrade to Long-Sleeve Shirt?
Optional... Note: If you're choosing a Past Edition and would like it in Long-Sleeve be sure to select 'Yes'!

Special Class: First Finish at this Distance?
Optional... upon successful completion, will this be your first-ever 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 a trail run of 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.

What is your favorite, must-have refreshment at aid stations?
Optional... help with our planning by providing your favorite aid station refreshment, treat, or snack.

How did you first hear about our Paleozoic Trail Runs?
Optional... if this is your first time running Paleozoic Trail Runs, please let us know how you found out about our race.

Special Registration Consideration
Optional... consideration for special dedication.
1.) Did you participate in either of our past two Paleozoic Trail Runs, which took place Spring 2025 and Fall 2025?
2.) Are you a current member with dues paid of `Prairie State Road Runners` club?
Please select 'Yes' if you qualify, otherwise leave blank. Note: we have records and will validate come race-day check in. These special consideration discounts may expire 10-days prior to race day!

Waiver
For this version of Paleozoic Trail Runs all attendees will be required to sign our race-day waiver at packet pickup prior to participation.
I know that participating in this athletic event is a potentially hazardous activity. I certify that I am properly trained and have obtained my physician's permission to participate. In my participation I assume all risks associated with this event including, but not limited to: injuries, falls, collisions, contact with other participants, contact with bicycle and vehicular traffic, contact with other persons who're not event participants, encounters with animals, the effects of weather, including cold, heat or high humidity, lightning, rain, snow, hail, or ice. I agree to participate in the spirit of fair sportsmanship with respect to other participants, and will abide by rules and decisions of the race administrators and governing officials. I will pay the additional replacement cost of $35 if the timing chip assigned to me is not returned after the race.
Having read this waiver and knowing these facts and in consideration of my acceptance into this event, I for myself and anyone entitled to act on my behalf, waive and release Kemper Tech, Inc (dba RunRace), all volunteers, all sponsors and all of their representatives, and successors, and beneficiaries, and benefactors, the Forest Preserve District of Cook County, the State of Illinois from all claims or liabilities of any kind arising out of my participation in this event though that liability my arise out of negligence or carelessness on the part of the persons named in this waiver.
All packet pickup will take place onsite at our start/finish area, Palos Park Woods-North, Grove #1 on race morning, beginning at 7:30 am CST.
For late-entry/wait-list runners, who register past the date of October 31... I acknowledge that there may be a delay in delivery of my Paleozoic Trail Runs finishers' medal, and that there may be an additional cost for shipping/handling should I request that my finishers' medal be sent to me via U.S. Mail. I agree to pay such shipping/handling costs.
 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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