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Triathlons Found In September 2026
View all ↓Triathlons In September 2026
The most comprehensive list of Triathlons in September 2026. Discover, compare and book the best September 2026 Triathlons near you!
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Race Calendar: Triathlons September 2026
🚀Boosted
Votwo Dorney Lake Triathlon
Windsor, Berkshire
Sun 20 Sep 26
£62.00 - £97.00
4.5
🚀Boosted
Superfeet Sandman - Triathlon & Duathlon
Llanfairpwllgwyngyll, Gwynedd
Sun 27 Sep 26
£76.99 - £239.99
THE ROC ENGLAND
Ulverston, Cumbria
Fri 04 Sep 26 - Sat 05 Sep 26
£270.00 - £280.00
One on the Lake - Dorney Lake Triathlon
Windsor, Berkshire
Sun 06 Sep 26
£26.68 - £85.40
Triathlon Y Bala
Bala, Gwynedd
Sun 06 Sep 26
£96.99 - £239.99
Alderford Triathlon 2026
Whitchurch, Shropshire
Sun 06 Sep 26
£99.00 - £119.00
5.0
Brighton & Hove Triathlon and Multisport Festival
Hove, East Sussex
Sun 06 Sep 26
£21.00 - £149.00
Bridge August 2nd Triathlon
Dartford, Kent
Sun 06 Sep 26
£68.17
SALCOMBE BREWERY CO SPRINT TRIATHLON
North Sands, Salcombe TQ8 8LD
Sun 13 Sep 26
£69.19
Tri Reigate Sprint & Standard Triathlon
Betchworth, Surrey
Sun 13 Sep 26
£87.00 - £97.00
Langport Triathlon 2026
Langport, Somerset
Sun 13 Sep 26
£55.25 - £73.15
2026 - Fleetwood Triathlon
Fleetwood, Lancashire
Sun 13 Sep 26
£60.00
2026 Wilmslow Autumn Triathlon
Wilmslow, Cheshire East
Sun 20 Sep 26
£40.00 - £90.00
Votwo Dorney Lake Triathlon
Windsor, Berkshire
Sun 20 Sep 26
£62.00 - £97.00
4.5
One on the River - Henley Triathlon
Henley-on-Thames, Oxfordshire
Sun 20 Sep 26
£26.68 - £117.42
Cowman Triathlon
Olney, Buckinghamshire
Sun 20 Sep 26
£68.00 - £141.50
5.0
ATW St Neots Triathlon - Race3
Riverside Park, Regatta Meadow, St Neots, Cambridgeshire, PE19 7AB
Sun 20 Sep 26
£62.54 - £196.10
Dawlish Triathlon
Dawlish Warren
Sun 20 Sep 26
£51.94 - £66.00
North West Triathlon 2026
Nantwich, Cheshire East
Sun 20 Sep 26
£89.00 - £99.00
Dorney Lake Triathlon September
Dorney Lake, Court Lane, off Lake End Road, Windsor SL4 6FJ
Sat 26 Sep 26
£61.48 - £127.20
4.7
ATW Grafham Triathlon
Grafham Water Visitor Centre, Marlow Park, Grafham, Huntingdon, Cambs, PE28 0BH
Sat 26 Sep 26
£83.74 - £127.20
4.7
Hever Castle Triathlon & Multisport
Edenbridge, Kent
Sat 26 Sep 26 - Sun 27 Sep 26
£37.63 - £260.93
Mumbles - Multi Sport Festival
Knabb Rock, Mumbles
Sat 26 Sep 26
£32.40 - £160.92
East Leake 'End of Season' Sprint Triathlon
Loughborough, Leicestershire
Sun 27 Sep 26
£48.00 - £60.00
4.4
Superfeet Sandman - Triathlon & Duathlon
Llanfairpwllgwyngyll, Gwynedd
Sun 27 Sep 26
£76.99 - £239.99
Race The Sun Lake District
Keswick, Cumberland
Sat 05 Sep 26
£60.00 - £120.00
On Sale
Middlesbrough Sprint Triathlon
Middlesbrough, Cleveland
Sun 06 Sep 26
£60.00
Hardingstone Sprint Triathlon
Northampton, Northamptonshire
Sun 06 Sep 26
£31.50 - £55.00
Sundowner Triathlon
Allerthorpe Lakeland Park, Melbourne Road, Pocklington, York YO42 4RL
Sat 12 Sep 26
£63.88 - £175.32
Cheltenham Tri Festival 2026
Cheltenham, Gloucestershire
Sun 13 Sep 26
£54.00 - £99.00
Woking Autumn Triathlon & Junior Aquathlon
Woking Leisure Centre, Woking Park, Kingfield Road, Woking, GU22 9BA
Sun 13 Sep 26
£20.00 - £74.50
Showing 1-29 of 29 results