

Oct. 17th 2026
Yellowwood State Forest
Nashville IN
25th Annual Trail Running Festival

50k

50k Relay

26.2

13.1

8Mile

RACE DATE: October 17th, 2026.
DISTANCE: 8Mile, 13.1, 26.2, 50k, 50k (2-4p Relay)
GUIDEBOOK: CLICK HERE or see below
CAMPING: Festival-Style camping available at the race site
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Tent Only, no amenities, pit toilets & porta potties
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Cost is $5 per person, pay at registration or RunSingUp (store).
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There are 74 primitive sites 1 mile south event site
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Register upon arrival @Forest Service Office.
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Additional Lodging: Brown County State Park, Nashville IN Hotels, Story Inn, Explore Brown County.
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START/FINISH: Group Camp @ Yellowwood Lake
PRICING & START TIMES "Full Schedule Below":
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50k (8:00am) - Early $90/ Increase (June 1st) $105/ Day of $115
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50k Relay (2-4p) (9:00a.m.) - Per Person Early $35, Increase (June 1st) $45, Day of $55
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26.2 (8:15am) - Early $80/ Increase (June 1st) $95/ Day of $105
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13.1 (8:30) - Early $65/ Increase (June 1st) $80/ Day of $90
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8m (9:00am)- Early $35/ Increase (June 1st) $45/ Day of $55
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Double feature savings
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Run the 50K and receive 10% off ultra distance for Jackson County Ultras & Tecumseh 50k!
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Email us for 20% off code off into Jackson if you have already registered. You may use the bundle option during registration.
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ITR Members get 25% off. Email us for discount!
POST-RACE EXPERIENCE: (Food for 2026 pending, will delete when official)
Finisher Medals & Age Group Awards (Top 3 M/F in ea. AG), On site custom finish engravings "FREE" by RTB awards, Mashed potato bar with choice of Chicken Noodle or Veggie (Vegan) Soup, Fire pit, Athletic Brewing (MUST BE 21), SMORES BUFFET, ITR Tent, camping and community vibes!
Hoodies/T-Shirts are optional to keep entry fees lower.
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Must register by 10/1/26 for Apparel. Must be present to receive. We are unable to mail them.
DINO and Indiana Trail Running are committed to providing another excellent experience in the 25th running of this fall classic trail run race! We have worked hard at keeping with the true to its name "Tecumseh Trail Challenge" redesigning the race around the railroad closure to provide a more nostalgic course we know runners will be excited about! Come run with us through the demanding, challenging, yet beautifully rewarding terrain during the autumn colors this fall as we create something special together!
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Learn about the the entire 42mile Tecumseh Hiking Trail here!
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Visit https://www.indianatrailrunning.org/ for training run schedules & other events
VOLUNTEERING
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If you are unable to run please consider Volunteering, Volunteers are Essential to this event!
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Volunteers receive FREE T-Shirt, Free Festival Camping, Meal & Discounts into future races
RESULTS UPDATE:
As we have swapped from Ultrasignup to Runsignup we will be slowly working to post previous year results on runsignup. Results are not gone, it's just a time consuming process.


AID STATION INFO
Drop bags are for 50K & Marathon runners only! 1 per Aid station. 2 total. 50k runners will hit drop bag #2 twice at the Dam Aid.
EVENT SCHEDULE
Friday, October
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6-8 PM Packet Pick-up/ Late registration at Yellowwood Group Camp
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Day of Festival camping may be purchased during this time, 1st come 1st serve
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Saturday, RACE DAY
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6-9:00am: Packet Pick-up/ Registration (at Yellowwood Group Camp)
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8:00am: 50k Start "Solo only- Relay starts @ 9:00am"
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8:15am: 26.2 Marathon Start
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8:30am: 13.1 Start
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9:00am: 50k Relay & 8mile
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6:30pm: Finish cut-off
Training runs & Trail work! Register for free!!
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Sept TBA– Trail maintenance
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Sept TBA Training run #1 - Register for FREE
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10:00am - 9.4 Miles - Start/Finish to Prang Aid Station & back
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Unmanned water stop at Prang Aid Station (4.7 miles)
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Sept TBA – Trail maintenance
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Sept TBA Training run #2 - Register for FREE
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10:00am -12.1 Miles - Start/Finish to Scare O' Fat loop, Y-Trail, & back to Start/Finish
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Unmanned water stop at Dam Aid Station (2 & 6.3 Miles)
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SUPPORTING SPONSORS & EVENT PARTNERS
EMAILS US INFO@DINOSERIES.COM IF YOU WOULD LIKE TO GET CRAZY WITH US!

Dr. Charlie Williams, MD
Family Medicine - Anderson, IN
DCO INDUSTRIES INC.
















