At great depths divers can suffer from nitrogen narcosis which produces a state similar to being drunk.
Diving in the Vertical Blue competition at Dean's Blue Hole, Long Island, the 29-year-old dived next to a vertical line using a form of breaststroke and spent 4 minutes 9 seconds under water, surfacing with a tag from the 116m mark.
The free-diving event runs until April 27.
Trubridge dives wearing a specially designed silicon-coated wetsuit.
