Trail Running calendar near Biggar 2026-2027

A trail running event at Airthrey Castle offering five routes from 5 km to 50 km across forest and Ochil Hills terrain. Outposts provide snacks and self‑serve water; longer routes require mandatory safety kit and have a nine hour cut off.

Experience 13 miles of scenic fells and trails starting from the historic Lowther Castle. This marked course features river crossings and 1400ft of ascent with all proceeds supporting the Eden Valley Hospice.

Join this classic Keswick fell race in the Lake District on Wed 12 Aug 2026 for a lively 4.7 mile trail challenge with 280 m climb and a summit of Latrigg. On the day entries are welcome, fee £5 and runners must be 16 or older.

Join the Keswick Sports Fell Race in the Lake District on Sun 16 Aug 2026 for a punchy 3 mile, 290 m climb course from Fitz Park Cricket Pavilion. Entry on the day and juniors welcome with big prizes for record breakers.

Tackle a brand new fell race on Wed 19 Aug 2026 in Bannerdale, Lake District, starting and finishing above the White Horse Inn at Threlkheld. The short yet fierce 6.3 km route climbs 882 m and entry is on the day only at the pub for £5, reg..

A challenging fell race in Northumberland's beautiful countryside. The 5.8km route features 300m of climb and is part of the regional championship. Entry is available on the day.

A 33 km fell race across the Ochil Hills with 1770 m of ascent, starting at Glen Sherrup and finishing at Stirling University. Summit controls mark the route and runners must carry compulsory map, compass, whistle and waterproofs.

A 10th anniversary trail event on the Loch Eck Loop featuring a 52.22 km route with 983 m of ascent. Solo and relay options run on fully signposted trails with checkpoints, refreshments and finisher items.

A trail ultra on the Borders Abbeys Way visiting four ruined abbeys. Options include a full 109K, a 50K and a four-person relay with checkpoints, drop bags and mandatory GPS tracking.

A 10km trail run around Bertha Loch and Almondbank with technical, muddy sections through woods and gentle hills. A 12 hour lapped event called Big Bertha uses the same 10km loop for as many laps as participants choose.

A 12 hour trail challenge on a 10 km loop around Bertha Loch where runners go solo or in teams. The event features chip timing with live results, water on course, medics, marked marshalled trails, prizes and medals for finishers.

Seven mile trail race in Carron Valley Forestry on 22 August 2026, run on undulating forestry tracks toward Meikle Bin; chip timed, limited to 200 runners, with proceeds shared between Alzheimer Scotland and Ochils Mountain Rescue Team.

A single-lap, 21 kilometre trail race around Derwentwater and nearby fells in Keswick, with marked route, bespoke medal, event photos, age limit 17+, and prizes for top finishers and age-group winners.

A single lap 44 kilometre trail race around Scafell Pike near Keswick on 23 August 2026, with an unmarked mountain section where navigation is essential and participants should be prepared with suitable clothing and footwear.

A trail running festival at Tulliallan on 23 Aug 2026 with half marathon, 10 km, 5 km and a 1.5 km family run, clearly marked off-road routes and proceeds from the fun run supporting local charities.

A scenic trail race of about 10K around Brodick on the Isle of Arran with roughly 600 feet of ascent. The route uses footpaths and forestry roads, starts at Ormidale Sports Pavilion, and has an entry limit of 100 runners.

A 5.7 mile trail race in Cardenden Woods on 23 August 2026 marking the 200th anniversary of Scotland’s last pistol duel, with mainly off-road terrain, limited places and on-site prize giving at the Corrie Centre.

Experience the stunning scenery of the Borrowdale Valley on this 21 km trail race featuring 550 meters of ascent through woodland, rocky tracks, and historic Lake District landmarks.

A summer evening 5 km series across three Edinburgh parks with chip timing, marked courses, finisher medals and category prizes. Enter single races for £12 each or all three for £30.

Experience a traditional Lake District fell race at the Ennerdale Show. This event features an 8 km senior course and various junior races with registration available on the day.