SOUTHEASTERN TRAIL RUNS
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The Blood Rock 100 & 50 Mile
and Blood Rock 55K & 25K​

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Register at Ultrasignup.com

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Blood Rock has been approved by Oak Mountain State Park.
The race is on Schedule for December 2021!

2021 Blood Rock Endurance Trail Races
100 Mile Starts December 3rd at 12 Noon - 40 Hour Cutoff
50 Mile Starts December 4th at 7:00 AM - 18 Hour Cutoff
55K Starts December 4th at 8:00 AM - 14 Hour Cutoff
​25K Starts December 4th 8:00 AM - 7 Hour Cutoff
Oak Mountain State Park 

Located in Pelham, Alabama, just south of Birmingham

The 2021 Blood Rock trail races will likely be the hardest race you have ever run of a comparable distance. The 100 will have well over 52,000 feet of elevation change, the 50 mile, 27,000 ft. of change, the 55K and 25K will have9,400 ft. and 17,600 ft. respectively.  However, the elevation gain is not what makes the race so hard. It is the terrain. Our little mountain at Oak Mountain State Park is only 700 feet tall and about 10 miles long but what it lacks in size it makes up for in brutally steep, technical climbs and descents, treacherous trails and endless miles of rocks and roots. Then again, there are also some very gentle and very runnable trails. But not many!

The 2021 Blood Rock course will be the same as the 2020 course with one little adjustment. There will be no out-back sections. We will remove the backcountry out-back and the powerline out-back. This will create a 34.1 mile loop. The 100 mile will be three laps of the course. The 50 Mile will be one full lap, with a repeat of the 15 mile north loop. The 55K is one lap, and the 25K is the 15 mile north loop, same as last year.

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Blood Rock is a Qualifying Race for UTMB (Ultra-Trail du Mont-Blanc)
A Blood Rock 100 Finish will earn 6 Points - 10 Points are required to enter UTMB
Blood Rock 50 Mile earns 3 Points
Blood Rock 55K earns 2 Points


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We have reserved all 10 cabins on Tranquility Lake for the 2021 Blood Rock 100. The cabins are located at the start/finish. Each cabin has two bedrooms and sleeps 6.
(With two on a sleeper sofa.)

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On May 1st, We will begin accepting reservations for cabins at the start area of the Blood Rock races. 50 and 100 mile runners may reserve two or three, or more nights. (Friday and Saturday are required) All cabins are set up for light housekeeping with linens furnished. Each cabin has two bedrooms with 1- King bed and 2-Double beds (MAXIMUM CAPACITY 6), one bath, a kitchenette with utensils and cookware, central heat and air, porch, grill and picnic table. Dish Network and a flat screen TV are located in the living room of each cabin. ​There are two pet friendly cabins.

The 2021 Blood Rock Course Map

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2021 Blood Rock 100 & 50 Runners Manual
55K and 25K Runners should read it too.

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100 & 50 Milers, please print the blue car pass on the left. 55K & 25K runners print the red car pass on the right. Bring your pass with you to the race. Display it on the dash of your vehicle at all times while in Oak Mountain State Park. The pass does not provide free entry into the park. Park entry fee is $5 per person. 

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2021 Weekend Schedule - Blood Rock 100 
Friday, December 3rd – 9:30 to 11:30 AM - Mandatory runner check-in and Packet Pickup for 100-mile runners at The Cabins.
There will be NO Late Registration on Friday or Saturday for Blood Rock Races. All registrations close Monday Nov 29th. 
Drop Bags for 100-mile runners may be left a The Cabins before the start.

Friday December 3rd – 11:40 AM – Prerace Briefing at the Cabins. The pre-race meeting is mandatory for 100 Mile Runners. 
Friday December 3rd – 12:00 Noon – Start of the 100-Mile Trail Race.

2021 Weekend Schedule - Blood Rock 50 Mile
    
  50 Mile runners – You are welcome to try to find parking at the Cabins. Parking in the Cabins is extremely limited. DO NOT ALLOW ANY PART OF
      YOUR CAR TO EXTEND OVER THE PAVEMTNT OF THE CABIN ROADS. We will accept drop bags at Packet Pickup.

Saturday, December 4th – 5:30 to 6:40 AM - Packet Pickup and mandatory check-in for 50-Mile runners at the Cabins Start Area.
Saturday, December 4th – 6:50 AM - Race briefing for 50 mile runners at the Cabins.
Saturday, December 4th – 7:00 AM - Start of the 50 Mile Race.

2021 Weekend Schedule - Blood Rock 25K & 55K
     Parking – 25K and 55K - You MUST park at the BMX track and walk 600 yards to the start. Follow signs starting from the bathrooms across from the     
     BMX track. Walk right, heading behind the bathrooms toward Tranquility Lake Dam. Follow the wide trail around the lake keeping the lake on your     
     right.  This double track trail is part of the Blood Rock course so you may be encountering 100 mile runners.
     DO NOT BLOCK ANY SECTION OF THE PAVED ROAD around the BMX track.  
Saturday, December 4th – 6:15 to 7:40 AM - Packet Pickup and mandatory check-in for all 55K and 25K runners at the Cabins Start Area. We will   
​     accept dropbags for 55K Runners only.

Saturday, December 4th – 7:50 AM - Race briefing for 25 & 55K runners at the Cabins.
Saturday, December 4th – 8:00 AM - Start of the 25K, 55K Races.
Sunday, December 5th - 4:00 AM - Blood Rock 100 Course Closes for all races.
Mandatory Cutoffs must be strictly enforced. This is a requirement by the OMSP.

Lodging inside the park: 
We have reserved all 10 cabins on Tranquility Lake. This is the location of the start and finish.

The Cabins will may be reserved on a first come first served basis. The Cabins is the location of the start and finish and the Cabin Aid Station. Cabin registration opens May 1st for runners registered for the 100 Mile. On May 2nd,  50 mile runners may register if rooms are still available. If all rooms are not reserved by May 10th, all registered runners may reserve a cabin. Once all 10 cabins are reserved, additional registrations will go on a waitlist.

Lodging outside the park - South Entrance

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Our partner hotel is Holiday Inn Express just off Hwy 119, Cahaba Valley Rd, just 3 miles from the park entrance. Address: 260 Cahaba Valley Rd, Pelham, AL 35124. Our discount is listed under Southeastern Trail Runs. If you stay outside the park you will need to be close to the Southwest entrance if your race starts on Saturday AM.
Phone: (205) 987-8888, Rated: (4.5 our of 5)

Lodging outside the park - North Entrance (Only for runners starting Friday - North Gate doesn't open until 7:00 AM)

Here is a Google Maps link to all Hotels close to the north entrance to OMSP. This is the entrance close to Hwy280. DO NOT use this entrance on Saturday. You will miss the start!
Hotels near the North entrance of OMSP
Camping:
​Oak Mountain State Park has a large with 150 campsites for tents and RV's. The campground entrance is 1.2 miles form the start. There are also backcountry primitive campsites available.
​http://www.alapark.com/oak-mountain-state-park-camping
Marathon Runs 2017 Blood Rock 50/100 Race Video
2018 Preview Run Registration Form
Blood Rock Race & Course Pictures

Here is an awesome race report by Brandon Kasteler describing is 2020 Blood Rock 100 Race. Enjoy.

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Gordon Harvey's photo's from the 2020 Blood Rock 100

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Marathon Runs video of the start of the 2020 Blood  Rock 100 & 50 Mile and 25 & 55K Race

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Marathon Runs photos of the 2020 Blood Rock Start - All Races
Marathon Runs photos of the 2020 Blood Rock Races - Finish

The videos below will give you an idea of what to expect on the Blood Rock trails.

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Click the image above to watch the July 29, 2017 Blood Rock Preview Run Video by Marathon Runs. (MRuns.com)
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Click on this image to see the 2017 Preview Run video by STR

Our 2020 Sponsors

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Contact Southeastern Trail Runs:
     Southeastern Trail Runs,
     220 Normandy Ln,
     Chelsea, AL 35043
​.

Email RD - Southeastern Trail Runs
Change
  • home
  • 2021 Race Schedule
  • Our Mission
  • The Trail Series
  • Points Championship
  • Upcoming Races
    • Lake Martin 100 >
      • Harbor Lodge Reservations
      • Lake Martin 100 Start
      • Course Description
      • Heaven Hill Aid Station
      • Pace Chart
      • 27 Mile Finish
      • Lake Martin 100 Photos and Videos
    • Tranquility 3 & 6 MIle Trail Race
    • Run for Kids Challenge
    • Chelsea to Children's Harbor 100
    • Memorial Day Trail Race
    • Run Forest Run 717 Virtual >
      • How to Record Miles on Ultrasignup
      • Forest Gump Truth and Legend
    • Hotter 'N Hell Trail Race
    • Ridge to Blazing Ridge
    • Endless Mile >
      • Relay Registration
      • USATF Rules - To Set Records
    • BOO Run for Down Syndrome
    • Blood Rock Races >
      • Blood Rock 100 & 50 >
        • Blood Rock 100-50 Course Description
      • Blood Rock 55K & 25K >
        • 25-55K Course Description
      • Blood Rock Photos
  • More
    • Rules of the Game
    • Run Your First Ultra 2019 - New Posts
    • Run Your First Ultra Blog - Older Posts
    • Printable Registration Form