Interactive map showing the location of Ancient Oaks 100-Mile Endurance Run at coordinates28.5444269, -80.8323087 in Titusville, Florida.
444 Columbia BlvdThis is an Invitation-Only, No-Fee, Low-Aid race held in the Enchanted Forest Nature Sanctuary in Titusville, Florida the third weekend in December. The 2025 dates are Saturday-Sunday December 20-21, 2025. Race start time is 7:00 AM Saturday morning, and runners have 32 hours exactly to finish 29 loops of a 3.46-mile course for a total of 100.34 miles. The race has a hard 60-runner cap on entries, per agreement with the park.
In order to run, you must receive an Invitation to Run. In order to get one of those, you need to click on the WAITING LIST button located above, ANY TIME between 12:01 AM June 1, 2025 and 11:59 PM June 30, 2025 with a Request for an Invitation to Run. This will automatically place you on the Wait List, and the Entry List will be drawn from this Wait List on or about July 3, 2025.
Please do BOTH of us a favor and use an email address that you KNOW you will be using for the entire year. Each year, I get a handful of Requests from people using some email address that ends up being disabled somehow, and when I try and contact them at a later date, the email ends up floating endlessly in the ether of the universe, and they never receive my follow-up communications. I would strongly suggest against using a work email address, since work situations can and do change at a moment's notice.
Invitations to Run will be sent out via email on or about July 3, 2025. Everyone will either receive an Invitation to Run, or will be given a place on the Wait List.
It matters not how many ultras or 100-milers you have run, nor how fast you are. It matters not if you're running for your own reasons, or if you're running for a charitable cause greater than yourself. What matters is that you want to test yourself against the course and the time limit, and that you take your entry into the race seriously.
The Selection Process is unfair, just like life is unfair. No race that has more possible runners than entry slots has an entry process that's fair. Umstead's process of first come, first served fastest computer wins, is unfair. Western States' lottery system is unfair, Hardrock 100's logistical ticket system is unfair, Massanutten's stock-market-based system is unfair, and the Barkley Marathons' entry process is unfair. The process for selection into Ancient Oaks is no less unfair than any of those processes, and may be even more unfair than any of those other processes. The Selection Process is also private, and will not be disclosed, since it would lead to some runners trying to 'game' the system. IMPORTANT: THERE IS NO BUCKLE AS AN AWARD FOR FINISHING. There hasn't ever been a buckle offered since the race's inception, and as of this writing, there are no plans in the works to offer one in the future. If any of this is a problem for you, then there are more than 150 other 100-mile races to choose from, and you should choose to run one of those other races.
Choose from 1 race distance available for Ancient Oaks 100-Mile Endurance Run in Titusville, FL. Registration includes timing, finisher medals, and post-race refreshments.