Big Bertha 12-hour Endurance Run

🌟 Conquer the Big Bertha Trail Run 2027! 🏃‍♂️⏱️

Are you ready to test your limits and see how far your feet can take you? Big Bertha is back for its 4th year! It is an incredible 12-hour trail endurance running and walking challenge set on a beautiful, scenic loop around Bertha Loch and Almondbank in Perth.

Whether your goal is to finish a single 10K, hit a half marathon, complete a full marathon, or push deep into ultra-marathon territory, this timed format gives you the ultimate flexibility to run at your own pace!

🎯 Why Big Bertha is an Unmissable Challenge
  • 🔄 Flexible 10km Looped Course: Do as many laps as you like or can manage within the 12-hour time frame.
  • 🗺️ Fully Marked & Marshalled: Zero navigation stress! The entire loop through the woods, muddy trails, and gentle hills is fully signposted and heavily supported by marshals.
  • 🤝 Solo or Team Relay: Tackle the full 12 hours completely solo, or form a team with friends to share the distance and the fun.
  • 🌈 Fully Inclusive Environment: Proudly LGBTQIA+ friendly, welcoming runners and walkers of all backgrounds and categories (Female/Male/Non-Binary).
  • 🎒 What’s Included in Your Registration
  • ⏱️ Pro Chip Timing: Advanced timing services by Keep it Simple Timing Services with live, real-time results available as you cross the line.
  • 🩺 Top-Tier Support: On-course medical teams, full participant insurance, and an intermediate water station at the ~5km mark of every lap.
  • 🏅 Beautiful Handcrafted Medals: Every single finisher receives a unique commemorative wooden medal handcrafted by the talented team at The Workshop, Aberfeldy.
  • 🏆 Prizes & Glory: Awards for the furthest distances covered across Female, Male, and Non-Binary categories.
  • 🍰 Finisher Fuel: Celebrate your achievement with delicious finish-line sweet treats provided by local favorite Starfish Cakes and Bakery!

Entry Options

Big Bertha Trail Run - Solo
Team Relay Entrants

Refunds

Refunds

No Refunds



Instalment Plan

  • You may pay in equal instalments up to a either a maximum set by the organizer or monthly up to one month before the event, whichever is less.
  • There is an additional fee of 1% + £0.50 for each instalment.
  • You are responsible for ensuring payments are made, missing payments may mean removal from the event and loss of any monies paid to date.
  • For more information on instalment plans see here.

You can manage your entries from the My Entries page.