Slateman Triathlon
Llanberis, Gwynedd, United Kingdom
140.6 full distance triathlons in the United Kingdom
2026 and 2027 race calendar. 4 upcoming, updated daily.
Angus1Bristol1Buckinghamshire4Cambridgeshire1Cheshire3City of Edinburgh2Conwy4Cornwall3County Antrim3Cumbria16Derbyshire2Devon1Dorset2Dumfries and Galloway1East Dunbartonshire2East Sussex3Glasgow City1Gloucestershire1Greater London7Greater Manchester7Gwynedd7Hampshire7Highland3Isle of Anglesey4
All 49 regions
Angus1Bristol1Buckinghamshire4Cambridgeshire1Cheshire3City of Edinburgh2Conwy4Cornwall3County Antrim3Cumbria16Derbyshire2Devon1Dorset2Dumfries and Galloway1East Dunbartonshire2East Sussex3Glasgow City1Gloucestershire1Greater London7Greater Manchester7Gwynedd7Hampshire7Highland3Isle of Anglesey4Leicestershire2Lincolnshire2London1Monmouthshire1Newport1Norfolk3North Ayrshire1North Yorkshire6Northumberland2Nottinghamshire4Oxfordshire3Pembrokeshire2Perth and Kinross1Somerset2South Yorkshire2Stirling1Suffolk1Surrey2Swansea3Tyne and Wear3Wales1West Lothian1West Midlands3West Sussex2West Yorkshire6
June 2027
July 2027
Outlaw Original
Nottingham, Nottinghamshire, United Kingdom · Jul 24 to Jul 25, 2027
August 2027
IRONMAN Leeds
Leeds, West Yorkshire, United Kingdom
September 2027
IRONMAN Wales
Tenby, Pembrokeshire, United Kingdom