Phiri debuted on 25 July 2011 when she defeated Zambian boxer Esther Chalwe at the National Sports Development Centre in Lusaka.

[3] Her 13th fight was on 27 August 2016 at Lusaka's Government Complex where she retained her WBC title with a first-round stoppage victory against Gabisile Tshabalala.

[6] On 2 November 2017, she was defeated by Fatuma Zarika in a WBC super-bantamweight title fight, losing by unanimous decision with the judges' scorecards reading 97–92, 98–91 and 99–92.

[7] A rematch between Phiri and Zarika took place on 3 March 2019 at Kenyatta International Convention Centre, Nairobi, Kenya with the WBC title again on the line.

[8] Phiri faced Zimbabwe's Kudakwashe Chiwandire for the vacant WBC female interim super-bantamweight title on 26 February 2022, at the Government Complex in Lusaka, Zambia, losing by split decision.