Grace Van der Byl wins marathon swim foxsports Jun 14, 2014 at 5:30p ET NEW YORK (AP) Grace Van der Byl won the 31st annual Manhattan Island Marathon Swim on Saturday, completing the 28.5 mile counterclockwise course in 7 hours, 14 minutes, 3 seconds. The 35-year-old Van der Byl, 35, is from Solana Beach, California. The first male finisher was Samir Barei of Brazil in 7:17:59. Article continues below ... The NYC Swim-organized event is the longest annual swim race in the world. The race began and finished at the South Cove in Battery Park City.