- Katherine Brookes
- 27:32:32 hour(s):minute(s):second(s)
- United Kingdom (Bedworth)
The longest flute marathon is 27 hr 32 min 32 sec and was achieved by Katherine Brookes (UK) in Bedworth, UK, from 3 to 4 August 2017.
Katherine was the previous holder of this record and attempted it to regain her title.