Godfrey (17), a member of coach Gennadiy Labara's Osca squad, convincingly won the senior girls 50m (31.51sec), 100m (1min 06.09sec) and 200m (2min 24.31sec).
Canterbury swimmer Ebony Maikuku (Riccarton High School), the runner-up in the three events, was not able to break Godfrey's stranglehold.
Godfrey's dedication to training and work ethic has paid dividends this year and she has emerged as a future Olympic Games prospect.
She has the potential to follow in the footsteps of Olympians Anna Wilson and Liz van Welie, who have been Otago's best female swimmers in the past 20 years.
Godfrey will get her first taste of international swimming at the Commonwealth Youth Games at the Isle of Man in September.
She broke two Otago open women's records at the New Zealand open championships in Auckland in April with her 200m backstroke time of 2min 19.20sec and 100m backstroke time of 1min 05.56sec. The 200m was worth 720 Fina points.
Matthew Hutchins (Lincoln High School), another member of the New Zealand team for the Commonwealth Youth Games, dominated the senior boys events.
Hutchins (16) won the four freestyle events: 50m (25.75sec), 100m (55.21sec), 200m (1min 58.62sec) and 400m (4min 13.59sec) and the 200m individual medley (2min 17.66sec).
Abbie Johnston (Christchurch Girls' High School) won the senior girls 50m (34.05sec) and 100m (1min 14.49sec) breaststroke.
Phoebe O'Leary (St Hilda's) was a convincing winner of the senior girls 400m individual medley in 5min 15.80sec and was second to Grace Sommerville (Mount Hutt College) in the 200m butterfly. Sommerville was clocked at 2min 26.64sec and O'Leary at 2min 30.21sec.
Sommerville also won the senior girls 400m freestyle in a close race in 4min 43.10sec from the St Hilda's pair of Stef Gillespie (4min 43.49sec) and Jessie Schneiders (4min 44.57sec).
Robert Murray (Taieri College) won the senior boys 400m individual medley in 5min 06.29sec from John McGlashan's Jack Turner (5min 9.24sec) and Kavanagh's Hamish McCulloch (5min 12.40sec).
