Delmi plays for Western Province, Duchesses and South Africa.

She attended school in Pretoria, playing both cricket and hockey and representing Northerns in both these sports. Turning her focus to cricket, she represented the South African Emerging Squad on their tour of Zimbabwe in 2021. After several strong performances domestically and for the Emerging side, she was called up to the Proteas Women's side and made her debut in June 0f 2022.

Delmi is an all-format player and to date has played one Test match, 10 Women's ODI's and 14 Women's T201 matches.