Longest crochet chain made while running a marathon

According to Official Guinness Records,

The longest crochet chain made whilst running a marathon is 139.4 m (457.35 ft) and was achieved by Susie Hewer (UK) at the 2014 Virgin Money London Marathon in London, UK, on 13 April 2014.
Susie finished in a time of 5 hr 40m 47 sec and averaged an astounding 5.3 metres per mile in beating her own record that she set back at the 2010 London Marathon. Susie's record was one of 30 successfully broken and verified onsite by Guinness World Records at the 2014 Virgin Money London Marathon.

For a complete list of 2014 records, please visit 2014 Guinness Records in United Kingdom.

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