Anacleto competed only in the women's 50 m freestyle at the 2000 Summer Olympics in Sydney. She received a ticket from FINA, under a Universality program, in an entry time of 29.48. She challenged seven other swimmers in heat three, including Nigeria's top favorite Ngozi Monu and Aruba's 15-year-old teen Roshendra Vrolijk. Diving in with a fastest reaction of 0.64 seconds, Anacleto scorched the field effortlessly to hit the wall with a second-fastest time and a Mozambican record of 28.78. Anacleto failed to advance into the semifinals, as she was placed 58th overall out of 74 swimmers in the prelims.