Highlander Assault Obstacle Race

AUG
15
2026
Challenge yourself at the Highlander Assault Obstacle Race in McHenry on August 15, 2026, an award winning OCR with 3k family, 5k and 15k options and day and night formats. Expect rugged obstacles, festival vibes and medals for finishers.
Sat 15 Aug 2026
15k

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Event overview

Highlander Assault Obstacle Race is an obstacle course running event held in McHenry, Illinois on August 15, 2026. The event has been voted the OCR Buddy People's Choice Award winner for the World's Best Small Obstacle Race Series. The site offers multiple formats including day, night, and seasonal themed events.

Race formats and distances

The event program includes these distances:

  • 5k
  • 15k
  • 3k Family

The 5k and 15k each run as multiple heats, including competitive heats (an elite 5k and an endurance 15k) and a range of open heats. The 3k is presented as a Family Frenzy heat.

Other event offerings

A night version called Dark Ages Night OCR is a 5k torch-lit obstacle race with illuminated obstacles and bonfires; it includes a competitive heat. A separate Haunted Highlander Trail Run is a 5k immersive trail run featuring live haunted actors, animatronics, and Halloween-themed scenes; this run does not include a competitive option.

Logistics and awards

The event takes place at 1911 W. Fernview Ln., McHenry, IL 60051. Entry fees listed for race groups are approximately $60 to $80 for the 5k, $75 to $95 for the 15k, and $40 for the Family Frenzy 3k. Finishers of the listed events receive a race medal and a t-shirt. Visit the organization's website for the most recent information.