Swimming events have concluded, and with more medals in the always-entertaining relays, which will place track and field's Olympic Stadium as the central force of prime-time in Rio. Take a look below to find out where the Team USA storylines and medals may come on Day 10 (times ET and available for live streaming event coverage on NBCOlympics.com).
Sunday, Aug. 14

Getting up early has become a way of life for golfers and fans of the sport, and they’ll see a medal awarded at the conclusion of the men's final round, which begins at the Olympic Golf Course this morning (6 a.m.). Team USA’s Bubba Watson, after back-to-back 67s, is tied for fourth as he tees off this morning. Matt Kuchar is one shot behind Watson at -5 for the tournament, followed by Rickie Fowler, who shot a -7 on Saturday to reach -3 on the tournament, and Patrick Reed, who is tied for 36th. Their tee times this morning: Reed (7:22 a.m.), Fowler (8:55 a.m.), Kuchar (9:17 a.m.) and Watson (9:28 a.m.).
This is also a marathon day in Rio, where the women’s field — which will include training partners and friends Amy Cragg-Hastings and Shalane Flanagan, who led Olympic Trials for 24 miles before falling behind as a result of dehydration and drama, along with Desiree Linden — will run through a most scenic coastal marathon course for gold (8:30 a.m.).
Synchronized swimming makes its Rio debut this morning, with the duet preliminary round’s free routine (10 a.m.). Team USA’s medal hopes rest with Mariya Koroleva and Anita Alvarez.
In the boxing ring, medal favorite Shakur Stevenson opens his preliminary round this morning, in the bantamweight class (11:15 a.m.), while Gary Russell’s march to a medal, after a win in the Round of 32, moves to a Round of 16 bout today (12:30 p.m.).
Shooting’s Matt Emmons, an Olympic medalist in 2004, 2008 and 2012, will aim for a medal in the 50-meter three position rifle final (noon). His first shots will come in this morning’s qualifications (8 a.m.).
On the open water, a busy day of sailing awaits, yet again, this one with medals on the line with the men's RS:X medal race (12:05 p.m.) and the women's RS:X medal race (1:05 p.m.). Also today: women's 470, Nacra 17, Finn and men's 470. The action gets underway at 12:05 p.m. and continues through the final start of the day at 3:05 p.m.
After two days off, artistic gymnastics jumps back into the scene on this Sunday afternoon, too. Men’s floor (1 p.m.), women’s vault (1:47 p.m.), men’s pommel horse (2:34 p.m.) and women’s uneven bars (3:21 p.m.) are all medal finals. Team USA certainly can expect medal conversation in the men’s floor with Sam Mikulak and Jake Dalton having qualified with the two highest scores, women’s vault with the incomparable Simone Biles, and women’s uneven bars, featuring two of the top three qualifiers in reigning co-world champion Madison Kocian and 2012 all-around champion Gabby Douglas. Alex Naddour will also appear in the pommel horse final. And Biles, of course, will have more shots at gold early next week.
Cyclist Bobby Lea competes for Team USA in the men’s omnium scratch race (3:40 p.m.).
On the mat, wrestler Andy Bisek could be competing for a medal at the Greco-Roman 75 kg. weight class (4:40 p.m.). He’s guaranteed a Round of 16 match (9:30 a.m.) with hopes of moving through the quarterfinals (10 a.m.) and semifinals (10:18 a.m.).
At Centre Court, the final day of tennis brings with it one a golden guarantee: Team USA will win gold in mixed doubles. The only question is which pair. Both teams — soon-to-be five-time Olympic medalist Venus Williams with Rajeev Ram and Bethanie Mattek-Sands with Jack Sock, who earned a bronze in men’s double this past week — won their semis on Saturday to advance to today’s mixed doubles final (12:30).
At the Maria Lenk Aquatics Centre, Abby Johnston, who upon her return from Rio will begin her third year of medical school at Duke, advanced out of Saturday’s prelims and semifinals to reach today’s women’s 3-meter springboard final (3 p.m.).
Back on the beach, women’s beach volleyball quarterfinals roll through the evening and well into primetime with, somewhat obviously, four matches to set up the semifinals (3 p.m., 4 p.m., 10 p.m., 11 p.m.). Kerri Walsh Jennings and April Ross, still undefeated in Rio, play in the 10 p.m. slot.
And what a night on the track. Fans with tickets to Olympic Stadium tonight may have the most coveted seats at the Games, the ones that include some of track's biggest stars:
- Men’s high jump (7:30 p.m.): Two groups, including Team USA’s Ricky Robertson, Bradley Adkins and 2012 silver medalist Erik Kynard Jr., will compete for a chance to move on to the Tuesday night final.
- Women's 400-meter semifinals (7:35 p.m.): Will Allyson Felix, hampered by an ankle injury that kept her from top form in her signature event, the 200-meter, be challenged on her way to what she hopes is a gold in the 400? And will Team USA place multiple athletes on the podium? Felix will run in Semifinal 3 (7:49 p.m.), preceded by Natasha Hastings in Semifinal 2 (7:42 p.m.) and Phyllis Francis (7:35 p.m.).
- Women’s triple jump final (7:55 p.m.): Keturah Orji sneaked in as the No. 12 seed on Saturday and is the lone American finalist tonight.
- Women’s 1,500-meter semifinals (8:30 p.m.): At trials, Jenny Simpson, Shannon Rowbury and Brenda Martinez, who memorably crashed across the finish line a mere 0:00.03 in front of an also-crashing Amanda Eccleston, finished 1-2-3. On Saturday, all advanced to the semis, with Rowbury and Martinez running in Semifinal 1 (8:30 p.m.), and Simpson in Semifinal 2 (8:41 p.m.).
- Men’s 400-meter final (9 p.m.): LaShawn Merritt, the gold medalist in Beijing, could earn his second gold medal after a hamstring injury cut short his Olympic dominance during a qualifying heat in London. But will all three medalists go sub-44 as they did at 2015 worlds? All three of Team USA’s entries reached Saturday’s semis, but only Merritt made it to the final.
- Men's 100-meter final (9:25 p.m.): In addition to an expectation that Justin Gatlin will figure in the 100-meter medals, will Trayvon Bromell and/or Marvin Bracy earn a spot on one of the most coveted podiums in Rio? All made it out of Round 1, and Gatlin’s 10.01 put him in the No. 1 seed entering tonight’s semis (8 p.m., 8:07 p.m., 8:14 p.m.).
In team sports …
- Undefeated women’s hoops tips off against China in its fifth game of Group B play (11:15 a.m.).
- Undefeated men’s hoops tips off against France in its fifth game of Group A play (1:15 p.m.).
- Men’s water polo, now 1-2 in Rio, takes on Italy (2:30 p.m.).
- Undefeated women’s volleyball, in its fifth game, meets China (4:05 p.m.).