May 2027

Beartown Backyard Ultra

Backyard · Congleton, Cheshire

Backyard (4.167mi loops)

Waitlist

Bristol Backyard Ultra

Backyard · Bristol

Backyard (4.167mi loops)

1–2 May 2027

Centurion Thames Path 100

Ultra · Richmond, Greater London

100 miles

HOWUM by Pegasus

Ultra · Llanidloes, Powys

30 miles

Malvern Hills Ultra

Ultra · Abberley, Worcestershire

45 miles

1–3 May 2027

Mid Sussex Marathon Weekend

Running · Haywards Heath, West Sussex

Marathon · 10 Miles · 10K

Pennine Barrier Ultra 50

Ultra · Malham, North Yorkshire

50 miles

The Maverick Exmoor X-Trail

Running · Lynton, Devon

Marathon · Half Marathon · 10K

The Maverick Exmoor X-Trail

Ultra · Lynton, Devon

56km

1–2 May 2027

Ultra X Scotland

Ultra · Dores, Highland

50km · 60km · 110km

Welsh 3000s Ultra Run

Ultra · Llanberis, Gwynedd

50km

ATW St Neots Triathlon

Triathlon · St Neots, Cambridgeshire

Sprint · Standard

Belfast City Marathon

Running · Belfast, County Antrim

Marathon

Great Birmingham Run

Running · Birmingham, West Midlands

Half Marathon · 10K

2–3 May 2027

MK Marathon

Running · Milton Keynes, Buckinghamshire

Marathon · Half Marathon

Newcastle-Gateshead Marathon, Half Marathon & 10k

Running · Gateshead, Tyne and Wear

Marathon · Half Marathon · 10K

Three Forts Challenge

Running · Lancing, West Sussex

Marathon · Half Marathon

Mon 3 May 2027

Tonbridge Triathlon

Triathlon · Tonbridge, Kent

Sprint · Standard · Duathlon

Brighton Backyard Ultra

Backyard · Brighton, East Sussex

Backyard (4.167mi loops)

Cateran Ultra

Ultra · Spittal of Glenshee, Perth and Kinross

55 miles

Endurancelife Exmoor

Running · Barnstaple, Devon

Marathon · Half Marathon · 10K

Endurancelife Exmoor

Ultra · Martinhoe, Devon

32 miles

Epona 100

Ultra · Abergavenny, Monmouthshire

100km · 100 miles

Great Bristol Run

Running · Bristol

Half Marathon · 10K

National Forest Way Ultra 75

Ultra · Alrewas, Staffordshire

75 miles

Radyr & Morganstown Half Marathon and Marathon

Running · Cardiff

Marathon · Half Marathon

Resolute Backyard Ultra

Backyard · Delamere, Cheshire

Backyard (4.167mi loops)

Rob Burrow Leeds Marathon

Running · Leeds, West Yorkshire

Marathon

Run Rabbit Trail Festival

Running · Corby, Northamptonshire

Half Marathon · 10K

Bewl Water Ultra 50km

Ultra · Wadhurst, East Sussex

50km

Hardmoors 26.2 White Horse Trail Races

Running · Sutton Bank, North Yorkshire

Trail 10K (8 miles) · Half Marathon (17 miles) · Marathon (28 miles)

Leeds Half Marathon

Running · Leeds, West Yorkshire

Half Marathon

Llanelli Agilis Sprint Triathlon

Triathlon · Llanelli, Carmarthenshire

Sprint

Market Drayton 10k

Running · Market Drayton, Shropshire

10K

Seaford 10K

Running · Seaford, East Sussex

10K

Shires and Spires

Running · Naseby, Northamptonshire

Marathon · Half Marathon · 10K

Zig Zag Marathon & Half

Running · Bury St Edmunds, Suffolk

Marathon · Half Marathon

14–16 May 2027

Ultra-Trail Snowdonia Eryri by UTMB

Ultra · Llanberis, Gwynedd

56km · 78km · 108km

Centurion North Downs Way 50

Ultra · Farnham, Surrey

50 miles

Draycote Water Running Festival

Running · Rugby, Warwickshire

Essex Triathlons - Hanningfield Reservoir

Triathlon · South Hanningfield, Essex

Sprint · Standard

Town to Tower 10K

Running · Ruthin, Denbighshire

10K

51fiver Cotswold Standard Distance Triathlon

Triathlon · South Cerney, Gloucestershire

Standard

Arundel Lido Triathlon

Triathlon · Arundel, West Sussex

Sprint · Standard

Big Green Scunthorpe 10K

Running · Scunthorpe, Lincolnshire

10K

Grantown Try Tri

Triathlon · Grantown-on-Spey, Highland

Sprint

Hackney Half

Running · London, Greater London

Half Marathon

Holkham Half Marathon & 10k

Running · Wells-next-the-Sea, Norfolk

10K · Half Marathon

Market Harborough Half Marathon

Running · Market Harborough, Leicestershire

Half Marathon

Plymouth Half Marathon

Running · Plymouth, Devon

Half Marathon

Pontefract 10K

Running · Pontefract, West Yorkshire

10K

Rye Half Marathon & 10K

Running · Rye, East Sussex

Half Marathon · 10K

Southport Triathlon & Multisport

Triathlon · Southport, Merseyside

Sprint · Standard · Duathlon

Stirling Half Marathon

Running · Stirling

Half Marathon

Sunderland City Runs Half Marathon & 10K

Running · Sunderland, Tyne and Wear

10K · Half Marathon

Yarrow River Bluebell 10K

Running · Chorley, Lancashire

10K

21–23 May 2027

Keswick Mountain Festival Trail Races

Running · Keswick, Cumbria

Half Marathon · 10K · 5K

Fri 21 May 2027

Red On Backyard Ultra - Cheltenham

Backyard · Cheltenham, Gloucestershire

Backyard (4.167mi loops)

Beat the Sunset 50km

Ultra · Maidenhead, Berkshire

50km

Glasgow Triathlon

Triathlon · Glasgow, Glasgow City

Sprint

Goring Gap Trails Festival

Running · Goring-on-Thames, Oxfordshire

Marathon · Half Marathon · 10K

Great Manchester Run

Running · Manchester, Greater Manchester

Half Marathon · 10K

Hardmoors 110

Ultra · Filey, North Yorkshire

110 miles

Mayfair Races

Running · Ballyclare, County Antrim

Outlaw Nottingham Weekend (Outlaw Half)

Triathlon · Nottingham, Nottinghamshire

Sprint · Middle

Skye Trail Ultra

Ultra · Duntulm, Highland

75 miles

The Grim Reaper Ultra

Ultra · Grimsthorpe, Lincolnshire

10 miles · 40 miles · 70 miles

The Maverick Cotswolds Trail

Running · Winchcombe, Gloucestershire

Marathon · Half Marathon · 10K

Yellow Belly Backyard Ultra

Backyard · Wyham, Louth, Lincolnshire

Backyard (4.167mi loops)

ATW Box End Triathlon

Triathlon · Kempston, Bedfordshire

Sprint · Standard · Middle

Anglesey Half Marathon & 10K

Running · Holyhead, Isle of Anglesey

Half Marathon · 10K

Great West Run

Running · Exeter, Devon

Half Marathon

Hemel Hempstead 10k & 5k

Running · Hemel Hempstead, Hertfordshire

5K · 10K

Keswick Mountain Festival 50K Trail Ultra

Ultra · Keswick, Cumbria

50km

Newmarket Half Marathon

Running · Newmarket, Suffolk

Half Marathon

Newry City Half Marathon

Running · Newry, County Down

Half Marathon

Northampton 5k, 10k & Juniors

Running · Northampton, Northamptonshire

10K · 5K

Nottingham 10K

Running · Nottingham, Nottinghamshire

10K

Swansea Triathlon

Triathlon · Swansea

Sprint

28–30 May 2027

Hardmoors 160

Ultra · Sutton Bank, North Yorkshire

160 miles

Edinburgh Marathon Festival

Running · Edinburgh, City of Edinburgh

Marathon · Half Marathon · 10K

Sold out

Sat 29 May 2027

God's Own Backyard Ultra - Spring

Backyard · Hawksworth, Leeds, West Yorkshire

Backyard (4.167mi loops)