baa 5k Enter Results Volunteer Sponsors Sections volunteer during marathon weekend B.A.A. volunteers take pride in their role within our races and we are deeply indebted to them for their commitment and support. volunteer during marathon weekend Registration Volunteer in the heart of the city on Marathon Weekend! Apply to volunteer starting in January 2019. Descriptions Learn about our B.A.A. 5K volunteer opportunities. To see a full list of potential job descriptions, click here.