Ubukungu bwe busangiye mu mahanga, Hakizimana yavuye mu Burundi mu 2015 nk'uko abimenyesha abantu ko hari uburenganzira bwe bw'umukinnyi. Uyu munsi aba mu nkambi ya Mahama aho abarimuza amashuri ya Taekwondo n'abasore batishoboye, ariko kandi akaba n'abahungu 130 bo muri iryo nkambi.
Yasize iminsi yo mu mwaka wa 2022 akina mu mukino wa Paralympiki wakoranye n'iyo ya Tokyo, akamara gukora ku musozo wa 1/8. Hakizimana yavuze ko Taekwondo ntibushobora kuba umukino gusa, ahubwo ni ikibazo cyo kubaho ubwacu n'ubwiza mu buzima bwe. Yumva ko kuba ikipe yabyifashije mu mugambi w'umuco, yabasabye kumenya umuryango w'umukinnyi, abenshi bitazirikana n'amarushanwa ya Paralympiki.
Mu gihe cy'uko yatangiye gutumira mu Paralympiki z'uyu mwaka wa 2024 mu Bufaransa, Hakizimana arashaka kwirinda akabazo no kumenya abandi mu bayiganya. Ibikorwa byiza byari byavuzwe muri iki gikorwa kigoye cyatuma Hakizimana arangije kuzarokoka ku muntu wese aho buri wese agomba kugira ubumuga no kubaho neza mu buzima bwe.
