According to Official Guinness Records,
The fastest time to sort 30 coloured crayons is 20.92 seconds and was achieved by Catherine Ward (UK), at GWR Live!, in Gilwell Park, London, UK, on 4 September 2016. GWR Live! were at the Scouts Reunion in Gilwell Park in Chingford.
For a complete list of 2016 records, please visit 2016 Guinness Records in United Kingdom.