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Get the appUnited Kingdom has 148 upcoming Triathlon events across distances like 0K, 1K, 2K, 3K, 4K, 5K, 6K, 8K, 10K, 11K, 12K, 13K, 14K, 15K, 17K, 18K, 19K, 20K, 21K, 22K, 25K, 26K, 27K, 28K, 30K, 33K, 34K, 38K, 40K, 42K, 43K, 44K, 46K, 50K, 52K, 53K, 55K, 57K, 90K, 92K, 94K, 112K, 113K, 115K, 123K, 180K, 184K. Recent additions include The Wales Swimrun, Lydney Lido T25 Triathlon, Cowman Triathlon.
148 events
1
The Wales Swimrun
Sat, Aug 1, 2026Tenby, United Kingdom
2
Lydney Lido T25 Triathlon
Sun, Aug 2, 2026Lydney, United Kingdom
2
Cowman Triathlon
Sun, Aug 2, 2026Olney, United Kingdom
8
Dorney Lake Triathlon Sprint & Standard
Sat, Aug 8, 2026Windsor, United Kingdom
8
Dorney Lake Triathlon August 2026
Sat, Aug 8, 2026Windsor, United Kingdom
8
ATW St Neots Triathlon - Race 2
Sat, Aug 8, 2026St Neots, United Kingdom
8
ATW Odyssey Triathlon
Sat, Aug 8, 2026St Neots, United Kingdom
9
The Big Lime Triathlons 2026 - Hartlepool Marina
Sun, Aug 9, 2026Hartlepool, United Kingdom
15
Bassenthwaite Triathlon
Sat, Aug 15, 2026Cockermouth, United Kingdom
15
Selkirk Aqua Bike and Run
Sat, Aug 15, 2026Selkirk, United Kingdom
16
Bournemouth Tri
Sun, Aug 16, 2026Bournemouth, United Kingdom
16
ATW Oundle Triathlon
Sun, Aug 16, 2026Peterborough, United Kingdom
16
Blithfield Olympic Triathlon & Aquabike
Sun, Aug 16, 2026Rugeley, United Kingdom
16
The Kilkerran MOK Tri Series 2026 - Race 3
Sun, Aug 16, 2026Campbeltown, United Kingdom
23
Thorpe Park Sprint Triathlon August 2026
Sun, Aug 23, 2026Chertsey, United Kingdom
23
The Geordieman 2026
Sun, Aug 23, 2026Morpeth, United Kingdom
23
Bodmin Triathlon
Sun, Aug 23, 2026Bodmin, United Kingdom
23
West Lancs Summer Triathlon
Sun, Aug 23, 2026Ormskirk, United Kingdom
23
Bishopton Triathlon
Sun, Aug 23, 2026Stockton-on-Tees, United Kingdom
26
Dorney Lake Evening Triathlon August 2026
Wed, Aug 26, 2026Windsor, United Kingdom
29
HUUB National Triathlon Relays 2026
Sat, Aug 29, 2026Nottingham, United Kingdom
29
Staffin Triathlon & 10K
Sat, Aug 29, 2026Hull, United Kingdom
29
Triathlon Schwarzachtal 2026
Sat, Aug 29, 2026Melksham, United Kingdom
30
Stromness Open Water Triathlon Festival 2026
Sun, Aug 30, 2026Stromness, United Kingdom
4
Something Wild Festival (5k to marathon trail races, swim runs, sea swims)
Fri, Sep 4, 2026Kingsbridge, United Kingdom
5
THE ROC England 2026
Sat, Sep 5, 2026Ulverston, United Kingdom
6
Brighton & Hove Triathlon and Multisport Festival
Sun, Sep 6, 2026Hove, United Kingdom
6
Hardingstone Sprint Triathlon
Sun, Sep 6, 2026Northampton, United Kingdom
6
The One on the Lake - Dorney
Sun, Sep 6, 2026Windsor, United Kingdom
6
New Forest Triathlon
Sun, Sep 6, 2026Ringwood, United Kingdom