With swimming and gymnastics in the rear view mirror, track and field events take center stage in the closing days of the 2016 Olympic games.
Here are some noteworthy numbers from Day 12 of the Summer Games:
1:59.31 The time posted by South African track athlete Caster Semenya as she cruised to an easy victory in her opening 800 meter heat. Semenya was at the center of controversy in 2009, when after winning gold at the World Championships, the IAAF ordered a gender test to check her testosterone levels. She wasn't cleared to run for another 11 months. Last year, the IAAF dropped rules that limited testosterone levels in female athletes after they were challenged by another runner at the Court of Arbitration for Sport. Semenya will run next in the semifinals Thursday.
2: Number of athletes asked to stay in Brazil while authorities conduct an investigation into a robbery. A Brazilian judge issued an order to seize the passports of American swimmers Ryan Lochte and James Feigen, who said they were victims in an armed robbery early Sunday morning, so they could be questioned again as part of the investigation. But Lochte had already left he country - his lawyer says he's back in the United States. The two other swimmers who were with them, Jack Conger and Gunnar Bentz, were taken off a plane in Rio Wednesday, and were being questioned.
3: The number of American female golfers currently in the 60 player field that tee off today. Gerina Piller, Stacy Lewis and Lexi Thompson will be representing the U.S. while Lydia Ko of New Zealand, Brooke Henderson of Canada and the top nine women in the world play golf in the Olympics for the first time since 1900.
4: Japan's Kaori Icho became the first wrestler to ever win four gold medals on Wednesday. She is also the first woman in any sport to win gold in individual events at four Olympics.
8:03.28: The time it took Conseslus Kipruto to win Kenya's Olympic gold medal in the steeplechase, winning in an Olympic record time to continue the country's streak of nine consecutive steeplechase golds. A Kenyan has won gold in the 3000 meter men's steeplechase in every Olympics since 1980.
10.3: The number of seconds it took Damian Warner of Canada to run the fastest Olympic decathlon 100 meters to kick off the two-day competition. Warner outran Olympic and world champion Ashton Eaton, an American, who finished in 10.46.
17: The total number of gold medals up for grabs at today's game — four of them on the track. American women are seeking a sweep in the 100-meter hurdles, and a showdown is on tap in the women's 200 meters between Dafne Schippers of the Netherlands and American Tori Bowie.