From the USA Swimming website
In the men’s race, 16-year-old Tennessean Sean Ryan earned an 11th place finish, with a time of 5:36:22.2.

“I think I was out really well,” said Ryan. “I underestimated how much energy I was using and then on the last 2 laps, the leaders pulled away and I just couldn’t hang with them. I sort of ran out of energy. I think it’s a great learning opportunity and I’m ready to try again soon.”

U.S. teammate Alex Meyer was poised to finish top-10, but was disqualified rounding the final buoy.

The swimmers navigated through a choppy waters for more than five-and-a-half hours. A full beach of spectators looked on in Ostia. The crowd erupted into cheers when Italian swimmer Valerio Cleri won the men's race in 5:26:31.6. Australia's Trent Grimsey took second in 5:26:50.7 and Russian swimmer Vladimir Dyatchin was third in 5:29:29.3.