Fastest marathon by a mascot (female)
Who
Rachel Bown
What
3:58:57 hour(s):minute(s):second(s)
Where
United Kingdom (London)
When

The fastest marathon by a mascot (female) is 3 hr 58 min 57 sec and was achieved by Rachel Bown (UK), running as Mr Hippo from the Brain Tumour Support charity, at the 2016 Virgin Money London Marathon, in London, UK, on 24 April 2016.

This was Rachel's 14th marathon. As an ambassador to the Brain Tumour Support charity, Rachel wanted to run as their mascot and achieve the record to raise awareness for them.