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Iron Butt rallies are unique opportunities for riders to pit their wits against each other by solving the "Travelling Salesman Problem" to achieve the maximum possible points from ‘bonus locations’ provided by the Rallymaster.

IBA UK runs three rallies – the Brit Butt Rally (36 hours), the Brit Butt Light (12 hours) and the Jorvik Rally (8 hours) as well as the annual Brit Butt Tour. IBA UK is closely associated with IBA Ireland and other joint rallies are organised occasionally, e.g. the Wolfhound. All IBA rallies are rigorously validated to ensure that riders have fully complied with the Rallymaster’s rules (however bizarre they may seem at times!). 

We also run the RBLR1000 in association with the Royal British Legion Riders Branch.

Congratulations to all.

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