The fastest time to break 10 plastic coat hangers is 5.70 seconds and was achieved by Nolan Ritchie (USA), in Akron, Ohio, on 8 September 2013.

This record was broken on the Guinness World Record Challengers site (Challengers’ tag: maak): http://challengers.guinnessworldrecords.com/challenges/281-fastest-time-to-break-10-plastic-coat-hangers/attempts/4294