Marcos Diaz, who began swimming at 5 following doctors orders when he was diagnosed with asthma, hopes to break Victor Massalles record of 50 kilometer swimming non-stop between today and tomorrow. Massalles’s record (50 kilometers in 15 hours and 52 minutes) was set in February 1980, and is the longest standing Dominican swimming record. Marcos Diaz will be the star of the Body Shop Swimathon. The event is held to gather funds for the Dominican national swim team. Masters and club swimmers will also be participating in the 48-hour swimathon that is open to the public.