[1] Weil was trained at the Villa María Academy where she was coached by her Olympic medal winning mother Ximena Restrepo, before relocating to Belgium.

[4] In May 2023, Weil broke the Chilean national record for the 400 metres, and then proceeded to lower it twice more before clocking 51.07 at the Diamond League event in Silesia, Poland in July 2023.

[5][6] In November 2023, Weil won a gold medal in the 400 meters Pan American games event in Santiago, Chile, 32 years after her mother claimed silver.

[7] At the same championships she was part of a Chilean team who set a new national record for the women's 4 × 100 m relay to secure a silver medal.

[11] She is the daughter of former Olympians; sprinter and Olympic bronze medalist Ximena Restrepo and shot putter Gert Weil.