Big Bertha Trail Run

AUG
21
2027
A timed 12 hour trail event on a marked 10 km loop around Bertha Loch in Perth with solo and team relay options, chip timing and on course support.
Sat 21 Aug 2027
10km Loop Big Bertha 12-Hour Endura...

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Big Bertha 12-hour Endurance Run

The Big Bertha 12-hour Endurance Run is scheduled for Saturday 21 August 2027 at Bertha Park Green, Adamson Avenue, Perth PH1 0AU. The event is organised by Wee Run Events.

Participants complete a timed 12 hour trail on a looped course around Bertha Loch and Almondbank. The circuit is a 10 km loop; entrants run as many laps as they choose within the 12 hour period. Entry is available for solo runners and for teams entering a relay.

Distances available include:

  • Single 10 km lap
  • 10 km distance
  • Half marathon distance by completing laps
  • Marathon and longer distances by completing additional laps

The course is fully marked and marshalled with on-course medical cover and an intermediate water station around the 5 km mark of each lap. Chip timing is provided by Keep it Simple Timing Services with live results. All finishers receive a wooden commemorative medal crafted by The Workshop, Aberfeldy, and there are awards for the furthest distances covered in Female, Male, and Non Binary categories. The event notes a no refunds policy and provides an instalment payment option that carries an additional fee per instalment. Race organiser details are listed as Wee Run Events. Visit the organization's website for the most recent information.

10 km
10km Loop
Big Bertha 12-Hour Endurance Run

Events nearby

A Halloween-themed 10K trail in Auchterarder through the Ochil Hills with varied terrain, goody bag, medals and age-category prizes; online entry, age 16 and over.
A trail race of about 5 miles around Falkland Estate, starting near Strathmiglo Village Hall with forest loops in Drumdreel woods and age category prizes.
Winter trail race at Balbirnie Park on 10 January 2027 over 4 to 5 miles of muddy woodland paths with medals for finishers and age-category prizes.
A 10 km winter trail around Bertha Loch and Almondbank in Perth on 31 January 2027 with chip timing, wooden finisher medals, on-site toilets and nearby parking.
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