August 2027

ATW Bristol Triathlon

Triathlon · Bristol

Sprint · Standard

Derby Running Festival

Running · Elvaston, Derbyshire

Half Marathon · 10K · 5K

Running GP Bedford Autodrome

Running · Thurleigh, Bedfordshire

5K · 10K · Half Marathon

Salford Triathlon & Aquabike

Triathlon · Salford, Greater Manchester

Sprint · Standard

York 10K

Running · York, North Yorkshire

10K

Wed 4 Aug 2027

Quayside 5k & 10k

Running · Newcastle upon Tyne, Tyne and Wear

5K · 10K

5–8 Aug 2027

MTC Thames Challenge

Ultra · Kemble, Gloucestershire

186 miles (4 days)

6–7 Aug 2027

Black Sheep Backyard Ultra

Backyard · Llyn Peninsula, Gwynedd

Backyard (4.167mi loops)

Sat 7 Aug 2027

ATW First to Full Triathlon Festival

Triathlon · St Neots, Cambridgeshire

Sprint · Standard · Middle

7–8 Aug 2027

Centurion North Downs Way 100

Ultra · Farnham, Surrey

100 miles

Race Across Scotland (Ultra GB)

Ultra · Portpatrick, Dumfries and Galloway

215 miles

Sat 7 Aug 2027

RunThrough Trails Brecon Beacons 51K

Ultra · Talybont-on-Usk, Powys

51km

Sat 7 Aug 2027

The Ultra Loop Leeds (8 Hours)

Ultra · Leeds, West Yorkshire

8 hours (5K loops)

Sun 8 Aug 2027

Solihull Half Marathon & 5k

Running · Solihull, West Midlands

Half Marathon · 5K

Sun 8 Aug 2027

The Big Lime Triathlons - Hartlepool Marina

Triathlon · Hartlepool, County Durham

Sprint · Standard

Sat 14 Aug 2027

Chepstow Running Festival

Running · Chepstow, Monmouthshire

Half Marathon · 10K · 5K

14–15 Aug 2027

Sirona 100

Ultra · Barmouth, Gwynedd

100km · 100 miles

Bedford Triathlon

Triathlon · Bedford, Bedfordshire

Sprint · Standard

Blithfield Olympic Triathlon & Aquabike

Triathlon · Abbots Bromley, Staffordshire

Standard

IRONMAN Leeds

Triathlon · Leeds, West Yorkshire

Full

Langdale End Show Fell Race

Running · Langdale End, North Yorkshire

11.2K

Newark Half Marathon

Running · Newark-on-Trent, Nottinghamshire

Half Marathon

Thorpe Park Sprint Triathlon

Triathlon · Chertsey, Surrey

Sprint

21–22 Aug 2027

London T100 (age-group races)

Triathlon · London, Greater London

Sprint · Standard · Middle

Sat 21 Aug 2027

Summer Green Man Ultra

Ultra · Bower Ashton, Bristol

45 miles

Sat 21 Aug 2027

The Restless Xtreme Gravel Triathlon

Triathlon · Lochgoilhead, Argyll and Bute

Middle

Beverley Half Marathon

Running · Beverley, East Riding of Yorkshire

Half Marathon

Bishopton Triathlon

Triathlon · Stockton-on-Tees, County Durham

Sprint · Standard

Ellesmere 10k

Running · Ellesmere, Shropshire

10K

Run Durham Dalton Park 10 & 5 Miler

Running · Murton, County Durham

5 Miles · 10 Miles

Storming the Castle

Running · Carrickfergus, County Antrim

The Geordieman

Triathlon · Morpeth, Northumberland

Middle · Full · Duathlon

York Triathlon

Triathlon · York, North Yorkshire

Sprint

Fri 27 Aug 2027

Kinloss BYU

Backyard · Kinloss, Moray

Backyard (4.167mi loops)

Sat 28 Aug 2027

Gosfield Backyard Ultra

Backyard · Gosfield, Essex

Backyard (4.167mi loops)