Athletics fixtures and events take place in the summer term. Pupils compete in all of the traditional track and field events both in internal inter house events and in fixtures against other schools. Cross Country events take place throughout the session again featuring both internal, inter school and national events. A highlight of the school athletics season is the annual Sports Day held in the summer term. There are separate events for Nursery and Junior Schools as well as the Senior School event held at Linwood.
Lomond pupils compete in county and national championships and regularly produce medal winning performances. A number of Lomond pupils have achieved international success as athletes. Most recently Former Pupil Angus McInroy represented Scotland at the 2010 Commwealth Games in Delhi.