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Get the appUnited Kingdom has 148 upcoming Triathlon events across distances like 0K, 1K, 2K, 3K, 5K, 6K, 8K, 10K, 12K, 13K, 16K, 17K, 19K, 20K, 21K, 23K, 24K, 25K, 26K, 28K, 31K, 36K, 37K, 42K, 45K, 52K, 54K, 56K, 61K, 66K, 80K, 85K, 90K, 100K, 113K, 227K, 452K, 679K. Recent additions include Perranporth Triathlon, Cotswolds Individual Team Relay Super Sprint Triathlon, Helvellyn Triathlon 2026.
148 events
6
Perranporth Triathlon
Sun, Sep 6, 2026Perranporth, United Kingdom
6
Cotswolds Individual Team Relay Super Sprint Triathlon
Sun, Sep 6, 2026Swindon, United Kingdom
6
Helvellyn Triathlon 2026
Sun, Sep 6, 2026Penrith, United Kingdom
6
Hardingstone Sprint Triathlon 2026
Sun, Sep 6, 2026Northampton, United Kingdom
6
The Gullane Beach Triathlon 2026
Sun, Sep 6, 2026Gullane, United Kingdom
6
Black Country Triathletes September 2026 Sprint Triathlon
Sun, Sep 6, 2026Wolverhampton, United Kingdom
6
The 1066 Triathlon
Sun, Sep 6, 2026Bexhill-on-Sea, United Kingdom
6
Triathlon y Bala 2026
Sun, Sep 6, 2026Bala, United Kingdom
6
The One on the Lake - Dorney
Sun, Sep 6, 2026Windsor, United Kingdom
6
Scottish National Standard Distance Triathlon Championships
Sun, Sep 6, 2026Banchory, United Kingdom
9
SWMA Tri Series Race 5
Wed, Sep 9, 2026Wotton-under-Edge, United Kingdom
12
Tri Reigate Sprint Triathlon September 2026
Sat, Sep 12, 2026Betchworth, United Kingdom
12
Sundowner Triathlon
Sat, Sep 12, 2026York, United Kingdom
12
The Beltie Triathlon
Sat, Sep 12, 2026Castle Douglas, United Kingdom
12
Montgomery Canal Triathlon
Sat, Sep 12, 2026Newtown, United Kingdom
13
Tri Reigate Standard Triathlon September 2026
Sun, Sep 13, 2026Betchworth, United Kingdom
13
2026 - Fleetwood Triathlon
Sun, Sep 13, 2026Fleetwood, United Kingdom
13
Woking Autumn Triathlon & Junior Aquathlon
Sun, Sep 13, 2026Woking, United Kingdom
13
ATW Milton Keynes Triathlon
Sun, Sep 13, 2026Milton Keynes, United Kingdom
13
Bournemouth International Triathlon
Sun, Sep 13, 2026Bournemouth, United Kingdom
19
The Brutal Extreme Triathlons
Sat, Sep 19, 2026Caernarfon, United Kingdom
19
Tri Dog Events Weekend, September 2026
Sat, Sep 19, 2026Bedford, United Kingdom
20
2026 Wilmslow Autumn Triathlon
Sun, Sep 20, 2026Wilmslow, United Kingdom
20
Votwo Eton Dorney Triathlons - September
Sun, Sep 20, 2026Windsor, United Kingdom
20
The One on the River - Henley - September
Sun, Sep 20, 2026Henley-on-Thames, United Kingdom
20
Falmouth Triathlon
Sun, Sep 20, 2026Falmouth, United Kingdom
20
The One on the River - Henley Triathlon
Sun, Sep 20, 2026Henley-on-Thames, United Kingdom
20
Votwo Eton Dorney Triathlons 2026
Sun, Sep 20, 2026Windsor, United Kingdom
26
Dorney Lake Triathlon September 2026
Sat, Sep 26, 2026Windsor, United Kingdom
26
Dorney Lake Triathlon Sprint & Standard
Sat, Sep 26, 2026Windsor, United Kingdom