The One in the Park - Regent's - AprilCorrida10k April 5, 2026Londres, Grande Londres, Inglaterra, Reino Unido
The One on the River - Marlow - MayTriathlon60 km32 km121 km55 km32 km110 kmDuathlon50 km34 km115 kmAquathlon25 km13 km29 kmNatação3 km750 m2 km May 24, 2026Marlow, Buckinghamshire, Inglaterra, Reino Unido
The One in the Park - Regent's - JuneCorrida10k June 7, 2026Londres, Grande Londres, Inglaterra, Reino Unido
The One in the Park - Richmond - JuneCorrida10kMeia Maratona June 7, 2026Londres, Grande Londres, Inglaterra, Reino Unido
The One for the Planet powered by ClimategamesTriathlonOlímpicoSprint13 km42 km21 km10 kmDuathlon55 km34 km15 kmAquathlon12 km6 km3 kmNatação3 km2 km750 mCorrida15 km10k5k June 14, 2026Windsor, Buckinghamshire, Inglaterra, Reino Unido
The One to the Castle - WindsorCorridaMeia Maratona June 21, 2026Marlow, Buckinghamshire, Inglaterra, Reino Unido
The One in the Woods - GatcombeCorrida em Trilha10k5kDuathlon50 km40 kmMTB216 km108 kmCiclismo100 km50 km June 28, 2026Stroud, Gloucestershire, Inglaterra, Reino Unido
The One in the Park - Regent's - JulyCorrida10k July 5, 2026Londres, Grande Londres, Inglaterra, Reino Unido
The One on the River - Henley - JulyTriathlon100 km66 km36 km80 km56 km31 kmNatação3 km2 km750 m July 26, 2026Henley-on-Thames, Buckinghamshire, Inglaterra, Reino Unido
The One on the Lake - DorneyTriathlonOlímpicoSprint10 km42 km25 km10 kmDuathlon55 km34 km15 kmAquathlon12 km8 km5 kmNatação3 km2 km750 m September 6, 2026Windsor, Buckinghamshire, Inglaterra, Reino Unido
The One in the Park - Regent's - SeptemberCorrida10k September 6, 2026Londres, Grande Londres, Inglaterra, Reino Unido
The One on the River - Henley - SeptemberTriathlon100 km66 km36 km80 km56 km31 kmNatação3 km2 km750 m September 20, 2026Henley-on-Thames, Buckinghamshire, Inglaterra, Reino Unido