Bank of America Chicago Marathon Acs Team DetermiNation Reservation System
About this race
OUR RESERVATION SYSTEM WILL OPEN ON THURSDAY, OCTOBER 8.
Please note: we will be out of the office supporting our 2026 Bank of America Chicago Marathon DetermiNation team through Sunday, October 11 and will follow up with anyone who registers on Monday, October 12.
Join Our Team
Claim your guaranteed entry starting Thursday, October 8, 2026 with Team DetermiNation for the 2027 Bank of America Chicago Marathon at the fundraising minimum of your choice. Once you reserve your spot with Team DetermiNation, your ACS staff partner will reach out after October 12 within one business day to provide instructions on how to formally register for the marathon itself and how to create your fundraising page through GivenGain. Thank you for your patience as we anticipate a high volume of interest.
Participation Options
Charity Entry: Claim your guaranteed entry through ACS and agree to raise $2620 ($100/mile) by September 29, 2027. You are responsible for paying the marathon entry fee ($325 + processing fee). *Once our team is sold out, we will begin a wait list and the fundraising minimum will INCREASE from $2620 to $3000.
FREE Charity Entry: Claim your FREE guaranteed entry through ACS and agree to raise $5000 by September 29, 2027. ACS will pay the marathon entry fee on your behalf.
NOTE: If you join our team while the public drawing is open, you are agreeing to BYPASS the drawing and claim your guaranteed entry immediately through the American Cancer Society's Team DetermiNation. You may NOT enter the drawing AND reserve a spot on Team DetermiNation - it is one or the other. We anticipate our team will sell out on or before the day public drawing results are announced in December, so please keep this timeframe in mind. Once our team is sold out, we will start a wait list and the fundraising minimum will increase.
Fundraising Minimum Deadline
All participants must reach their fundraising minimum by Wednesday, September 29, 2027. If you have not reached your minimum by Wednesday, September 29, your credit card will be charged whatever is owed to reach your minimum on Thursday, September 30, 2027. You may continue to fundraise after the minimum deadline and through the entire month of October. If you are charged on September 30 and then receive additional donations, you may request a refund from your ACS staff partner on Friday, October 29, 2027.
Team Amenities
- Guaranteed entry to the 2027 Chicago Marathon
- You pay the marathon entry fee ($325 + processing fee) if you choose the lower $2620 / $100 per mile fundraising minimum
- ACS will pay the marathon entry fee on your behalf if you choose the higher $5000 fundraising minimum
- In-person Group Marathon training with either Chicago Area Runners' Association (CARA) or Fleet Feet Training for those local to Chicagoland OR virtual marathon training through the Endorphins Running app
- Registration for marathon training will open in March 2027
- You will be eligible to register for marathon training once have you have raised $300+ towards your fundraising minimum
- Official Team DetermiNation running t-shirt or tank
- Team shirts / tanks will be shipped starting in April 2027
- You will be eligible to receive your shirt or tank once you have raised $300+ towards your fundraising minimum
- Race Weekend Amenities
- Team Dinner on Friday, October 8
- Private Race Day Space at the Palmer House Hilton on Sunday, October 10 featuring:
- Private Gear Check
- Light pre-race breakfast
- Indoor restrooms
- Corral Escorts for each wave
- Post-race party with buffet
- Recovery lounge including compression boot stations and professional stretching/massage provided by Illinois Bone & Joint Institute
- Per the Bank of America Chicago Marathon Event Rules, Charity guaranteed entries cannot be deferred, transferred, or sold. If you are unable to participate in the event for any reason other than pregnancy, you will forfeit your entry.
- Registering for the 2027 Bank of America Chicago Marathon is a separate step from reserving your spot on Team DetermiNation through this website. Your ACS staff partner will reach out to you within 1 business day of you reserving your spot on this website with instructions on how to complete your formal marathon registration. You must complete your formal race registration within one week of joining the team, and no later than Wednesday, July 14, 2027, whichever is earlier, or you risk losing your spot on Team DetermiNation.
- If you select the $2,620 fundraising minimum, the marathon entry fee for the 2027 Bank of America Chicago Marathon is separate from and in additional to the $2,620 fundraising minimum. You are responsible for paying the marathon entry fee ($325 + processing fee). Once you have completed your formal race registration and paid the marathon entry fee, you may NOT switch to the higher minimum in which ACS covers the marathon entry fee.
- If you select the $5,000 fundraising minimum, the American Cancer Society will cover the marathon entry fee on your behalf. Once ACS has covered this fee for you, you may NOT drop down to a lower fundraising minimum.
- All participants are responsible for fulfilling their fundraising minimum regardless of injury or personal decision to not participate in the race.
- Any donations you receive in connection with our 2027 Bank of America Chicago Marathon DetermiNation Team are applicable only to the 2027 Chicago Marathon event. Funds raised cannot be rolled over to a future year or to a different DetermiNation event.
Pick your distance
Running
Chicago Marathon Charity Entry (Participant pays for entry) - $2620 Minimum
I would like to sign up for the 2027 Bank of America Chicago Marathon as a member of the American Cancer Society DetermiNation Team. In exchange for my guaranteed spot in the race, I agree to fundraise at least $2,620 by September 29, 2026. I understand that I am responsible for paying the marathon entry fee ($325 + processing fee) and that the marathon entry fee is separate from and in addition to the $2,620 fundraising minimum. I understand I am responsible for fulfilling the $2,620 fundraising minimum regardless of injury or personal decision to not participate in the race.
Free Chicago Marathon Charity Entry (ACS Pays for entry) - $5000 Minimum
I would like to sign up for the 2027 Bank of America Chicago Marathon as a member of the American Cancer Society DetermiNation Team. In exchange for my guaranteed spot in the race, I agree to fundraise at least $5,000 by September 29, 2026. I understand that ACS will cover the marathon entry fee on behalf and once ACS has covered the fee, I may not drop down to a lower fundraising minimum. I understand I am responsible for fulfilling the $5,000 fundraising minimum regardless of injury or personal decision to not participate in the race.
I Already Have An Entry / Ya estoy inscrito en el Maraton
I have already secured my entry for the 2027 Bank of America Chicago Marathon either as a time qualifier, legacy finisher, Distance Series participant, or through the public drawing, and I would like to become an American Cancer Society DetermiNation participant. I understand that I must raise at least $1,500 to take advantage of all Team DetermiNation benefits, including group or virtual marathon training, team dinner on Friday, October 8 and private race day space on Sunday, October 10.
2027 Deferral Participant (Participant pays for entry)
I was a member of the 2026 DetermiNation team for the Bank of America Chicago Marathon. I exceeded my fundraising minimum by at least double, but was not able to participate in the race. I have explicit permission from Jessica Bloodgood or Karli Heneghan to join Team DetermiNation for the 2027 Bank of America Chicago Marathon with no additional fundraising required. I understand that my reservation will be deleted if I have not received explicit permission from Jessica Bloodgood or Karli Heneghan to reserve a spot on the 2027 team as a Deferral participant. I understand that I am responsible for paying the marathon entry fee ($325 + processing fee). I understand I must raise at least $300+ if I would like a new DetermiNation shirt or tank or if I would like to advantage of free group or virtual marathon training.
RESERVED Chicago Marathon Charity Entry (Participant pays for entry) - $2620 Minimum
I was member of Team DetermiNation for the 2026 Bank of America Chicago Marathon and fulfilled my fundraising minimum but was not able to participate in the race. I entered the public drawing and was not selected. Karli Heneghan and Jessica Bloodgood reserved an entry for me on the team in the event that I was not selected. Having not been selected in the public drawing, I would like to sign up for the 2027 Bank of America Chicago Marathon through Team DetermiNation. In exchange for my guaranteed spot in the race, I agree to fundraise at least $2,6200 by September 29, 2027. I understand that I am responsible for paying the marathon entry fee ($325 + processing fee) and that the marathon entry fee is separate from and in addition to the $2,620 fundraising minimum. I understand I am responsible for fulfilling the $2,620 fundraising minimum regardless of injury or personal decision to not participate in the race.
SPECIAL PERMISSION Chicago Marathon Charity Entry (Participant pays for entry) - $3000 Minimum
I am on the wait list and have received SPECIAL PERMISSION from Jessica Bloodgood or Karli Heneghan to join Team DetermiNation for the 2027 Bank of America Chicago Marathon. In exchange for my guaranteed race entry, I agree to fundraise at least $3,000 by September 29, 2027. I understand that I am responsible for paying for my marathon entry fee ($325 + processing fee) and that this fee is separate from my $3,000 fundraising minimum. I understand I am responsible for fulfilling the $3,000 fundraising minimum regardless of injury or personal decision to not participate in the race. I understand that if I have NOT received SPECIAL PERMISSION from Jessica Bloodgood or Karli Heneghan to join the team, my reservation will be automatically deleted.
SPECIAL PERMISSION FREE Chicago Marathon Charity Entry (ACS pays for entry) - $5000 Minimum
I am on the wait list and have received SPECIAL PERMISSION from Jessica Bloodgood or Karli Heneghan to join Team DetermiNation for the 2027 Bank of America Chicago Marathon. In exchange for my FREE guaranteed race entry, I agree to fundraise at least $5,000 by September 29, 2027. I understand that ACS will pay the entry fee on my behalf and and once ACS has covered the fee, I may not drop down to a lower fundraising minimum. I understand I am responsible for fulfilling the $5,000 fundraising minimum regardless of injury or personal decision to not participate in the race. I understand that if I have NOT received SPECIAL PERMISSION for a FREE entry from Jessica Bloodgood or Karli Heneghan to join the team, my registration will be automatically deleted.
FAST TRACK Chicago Marathon Charity Entry (Participant pays the entry fee) - $7500 Minimum
I would like to BYPASS the wait list and claim an entry with Team DetermiNation immediately. In exchange for my guaranteed race entry, I agree to fundraise at least $7,500 by September 29, 2027. I understand that I am responsible for paying for my marathon entry fee ($325 + processing fee) and that this fee is separate from my $7,500 fundraising minimum. I understand I am responsible for fulfilling the $7,500 fundraising minimum regardless of injury or personal decision to not participate in the race.
Fast Track FREE Chicago Marathon Charity Entry (ACS pays the entry fee) - $10,000 Minimum
I understand that ACS has had the opportunity to purchase a limited number of additional entries at a premium price for the 2027 Bank of America Chicago Marathon. I agree to fundraise at least $10,000 by September 29, 2027 in exchange for a FREE entry to this year's race. I understand I am responsible for fulfilling the $10,000 fundraising minimum regardless of injury or personal decision to not participate in the race. I understand that my entry cannot be deferred to a future year.
Typical race-day weather
Based on 7 years of Open-Meteo archive data for this event's race dates in Chicago, plus the 3 days either side.
The sun rises at 6:57 AM and sets at 6:17 PM local time (CDT) in Chicago on October 10, 2027 — 11h 20m of daylight.
Course
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Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 147 Chicago events
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