 Nyorai mberi kweiyi ndima - Akakwikwidza mumakwikwi eWorld Chess Championship yevakadzi 2000, kwaakasvika munharaunda yechipiri. Hahn akakunda 2003 U.S. Womens Chess Championship muSeattle mushure mekukunda Irina Krush naJennifer Shahade mumutambo wevatatu wekutamba. Pashure pacho, kwakava nokukakavadzana apo Hahn haana kuzosarudzwa nokuda kweboka rokudzidzira reOlympia. Kukunda uku kwakamuita kuti akwanise kupinda mumakwikwi eWomens World Chess Championship muna 2004, kwaakazorohwa naPia Cramling mumutambo wokutanga. 