Olympic swimming 2016 live stream: Time, TV schedule and how to watch Tuesday’s events online

Swimming’s most grueling event continues on Tuesday when the men dive into Guanabara Bay for a nearly two-hour endurance test. The open water 10k is the Olympics’ final swimming race, and it’s shaping up to be a battle. You can watch it on NBCSN or stream it via NBCOlympics.com beginning at 8 a.m. ET.

2012 champion Oussama Mellouli was the first swimmer to ever stand on the podium after both pool and open water events at the same Olympics when he took gold in the 10k and bronze in the 1500m in London. He’ll return to the event on Tuesday, but he won’t be the favorite after failing to medal in international competition the past three years. Instead, that honor may go to USA Swimming’s Jordan Wilimovsky. The 22-year old won last year’s race at the World Championships and could be even stronger in Rio de Janeiro.

However, he’s just one name of many at the top of a strong field. The Netherlands’ Ferry Weertman was the 2016 European champion in the event and finished second at last year’s Worlds. Greek veteran Spyridon Gianniotis is a two-time world champion who will have extra motivation in what may be his final opportunity to earn an Olympic medal. Another American, Sean Ryan, finished just behind those three in Kazan and is also a threat to reach the podium on Tuesday.

They’ll have to carve through an Olympic course that avoids Brazil’s most controversial water. Unlike the Games’ sailors, endurance swimmers will charter a path through Copacabana Beach. While the beach has its own issues with pollution, it’s nowhere near the hazard the rest of Guanabara Bay presents with its combination of body parts, untreated sewage, and super bacteria.

Time: 8 a.m. ET

TV: NBCSN

Online streaming: NBC Sports