Tierra Redonda Mountain Trail Run
- Trail Run
- 5k
- 10k
- 20 km
- 240 km
- 480 km
Participants will run a 4.18 mile loop every hour until only one person is standing. You have one hour to finish the loop once it has started. If you finish a loop within the hour, you may start the next hour’s loop provided you are in the start corral when the next hour starts. If you do not finish within the hour, you are out of the race and considered a DNF.
You may have a small crew of 2 people and set up at the race starting area, aka a pit stop area. We will give you a 3 minute, 2 minute, and 1-minute warning to get lined up for the next loop via whistle. 3 whistle blows for 3 min, 2 whistle blows for 2 min, 1 whistle blow for 1 min. Failure to line up in the starting corral will result in disqualification of the runner. Participants must start a new loop at the sounding of the bell starting the loop. No non-competitors on the course (including eliminated runners). Except for restrooms, competitors may not leave the course until each loop is completed. Runners are responsible for carrying their aid on course like, water & snacks. No aid stations will be on course. No artificial aids (including trekking poles) are allowed. No non-competitor pacers allowed. You may, as participants run / pace with each other. Once you are back to the start and assuming you have finished within the hour, you may use the bathroom, eat, drink, sleep, ponder the next loop, etc., but you MUST be back in the start corral at the beginning of the hour to continue into the next hour’s loop. Runners will continue until ONE runner completes a FINAL lap. (i.e. If there are two runners left and one does not complete the loop within hr or start the loop, then the one that completed the loop will be declared the winner). The time needed to complete the loop does not matter, only that the runner be back at the start before the hour expires. Upon successful completion of the loop, all runners are considered “tied”. Speed does not matter in this event. Once in the starting corral, no aid allowed, please come into the starting corral ready to run with what you have, no handing off anything to your crew members while you are in the starting corral. The assigned bib numbers must be worn on the front of the body and visible at all times. No refunds. No transfers. No deferrals.
Smith Ranch 8029 Lynch Canyon Road Bradley California 8:00am Friday, November 14, 2025
100% dirt, trail and ranch roads
Loop format
Marked with Green surveyors tape
Distance 4.18 miles
Elev Gain/Loss: gross: +332'-332'
View interactive map here
The last runner standing will receive not only the smile of accomplishment of being the last, they will take home a custom western style trophy buckle. All runners will receive a handcrafted Kukini amulet for their participation. All runners will receive an event sticker and a custom event t-shirt with their entry fee.
Runner Registration Fee $150.00 / $175.00 after September 1, 2026
Camp Fees $10.00 per vehicle, per night. Payable to Smith Ranch upon arrival at Runner Check In
One Aid Station will be fully staffed and available for the duration of the event. Water, ice, fruit, chicken soup, grilled cheese sandwiches, quesadillas and Hammer Nutrition products.
7:00am Friday, September 18, 2026 Main Camp Aid Station
In September, Bradley, California, typically experiences warm, dry weather with daily highs ranging from the mid-60s to the mid-80s°F (18-30°C) and lows in the 50s°F (10-15°C)
See below for all available coupons and save on your next registrations.
| Runner Registration Fee | $150.00 | View |
| Runner Registration Fee (after Sep 1, 2026) | $175.00 | View |
| Camp Fees | $10.00 | View |
Help us keep everything accurate. Report any issues with this event.