Tuhia tētahi tohutoro mō tēnei wāhanga - I whakatūria e Petersen tōna hītori kaukau i te 1999 Pan Pacific Swimming Championships i Hīnia, i reira i noho ai ia ki te tuawhā i te 100 m breaststroke, he iti noa iho i waho o te paepae. I taua tau ano, i whakawhiwhia e Petersen te mētara koura mo Awherika ki te Tonga i te 100 mita (1:02.63) i nga Taakaro katoa o Awherika
i Johannesburg.