<prompt> Pedzisa mutsara unotevera: Petersen akaumba nhoroondo yake yokushambira pa1999 Pan Pacific Swimming Championships muSydney, kwaakava wechina mumakwikwi e100 m breaststroke, achingova nechidimbu chiduku kunze kwepodiyamu. Mugore rimwe chetero, Petersen akahwina menduru yegoridhe yeSouth Africa mumakwikwi emamita 100 1:02.63 kuSouth Africa.  <response>: Mitambo yeAfrica yose muJohannesburg. 