Hi,
L1 is a weak, retrograde Mars, but we can't use the strong and exalted Moon to replace it in this case because the Moon is in aversion to the Asc by sign.
L1 is retrograde Mars in Gemini, in H2. L5, the significator for your daughter is the Sag Sun in H8. L5 is applying to a retrograde L1 forming an opposition. L1 Mars is a planet that stands for sports and competition. In this case, it's weak, and the L5 is in H8, the house of debts. Mars is in H2, the house of possessions. This may indicate that a problem with the sports career might be financial or simply discontinuing the career in sports because of an opportunity of obtaining a better income from other sources.
By turning the chart, we see that the retro Mars is in H10 (carrer) from the H5 (your daughter). This adds to my conclusion that she might not want to advance with a career in sports and favor another activity that would offer more stability at some point, or maybe you might be pondering this yourself. The exalted and strong Moon in Taurus, being the sign of security, comfort and stability in H1 hints to this as well.