From Pinar del Río, she has a twin sister, Lidianis, who is a handball player. Leyanis joined a sports school at the age of ten years-old and trained in both the high jump and triple jump. In 2018, she focused more on the triple jump and jumped over 14 metres for the first time by leaping 14.13m in her first official competition of 2019.[2]
Her jump of 14.15m on 21 March 2020 was the fifteenth longest jump in the world that year, and the world leading distance by a junior.[3][4] She made the qualifying mark for the delayed 2020 Olympic Games in May 2021 by jumping 14.46m (wind assisted) and then 14.32m.[5] Unfortunately, a late injury meant she traveled to Tokyo but could not compete. She did however, win gold at the Athletics at the 2021 Junior Pan American Games triple jump in Cali in late 2021.[6]
