- Mark Edwards
- 41:41 hour(s):minute(s)
- United Kingdom (Westward Ho!)
The longest marathon playing bass guitar is 41 hr 41 min and was achieved by Mark Edwards (UK) in Westward Ho!, UK, from 30 March to 1 April 2018.
Mark attempted this record to raise funds for the Children's Hospice South West. He chose this record as he is a keen endurance athlete and has been playing bass guitar for over thirty years.