Day 9 of the 2012 Olympics track and field events was full of drama and excitement.
It was a big day for Russian athletes in the track and field events. They racked up four gold, two silver and two bronze medals on the day.
The United States also had themselves a good day by hauling in three medals of their own.
The addition of Usain Bolt proved to be the edge the Jamaicans needed as they squeaked past the Americans in the men's 4 x 100-meter relay finals. They also set a world record with their time in the event.
Read on to check out all the action from the second-to-last day of Olympic action.
Gold: Sergey Kirdyapkin, Russia (3:35:59)
Silver: Jared Tallent, Australia (3:36:53)
Bronze: Si Tianfeng, China (3:37:16)
Sergey Kirdyapkin of Russia set an Olympic record with his race walk gold medal performance in the men's 50-kilometer event.
Gold: Elena Lashamanova, Russia (1:25:02)
Silver: Olga Kaniskina, Russia (1:25:09)
Bronze: Shenjie Qieyang, China (1:25:16)
This one was as close as a race walk can be. Both Russians came in within seven one-hundredths of a second of each other. They earned two medals in what would become a very successful day for the Russians in the track and field events.
Gold: Keshorn Walcott, Trinidad and Tobago (84.58 meters)
Silver: Oleksandr Pyatnytsya, Ukraine (84.51 meters)
Bronze: Antti Ruuskanen, Finland (84.12 meters)
Keshorn Walcott won another Olympic medal for his small Caribbean nation in the men's javelin throw event. He narrowly edged out Oleksandr Pyatnytsya from Ukraine to bring home the gold medal.
Gold: Anna Chicherova, Russia (2.05 meters)
Silver: Brigetta Barrett, United States (2.03 meters)
Bronze: Svetlana Shkolina, Russia (2.03 meters)
Two more Russians edged out the competition to earn track and field medals for their country. American Brigetta Barret came so close but tied Svetlana Shkolina for second place. She still took home the silver medal for the Americans after a tie-breaker.
Gold: Mohamed Farah, Great Britain (13:41:66)
Silver: Dejen Gebremeskel, Ethiopia (13:41:98)
Bronze: Thomas Pkemei Longosiwa, Kenya (13:42:36)
Mohamed Farah narrowly defeated long-distance runner Dejen Gebremeskel in this true test of endurance and fortitude. The Brit won the gold in front of his home-country crowd on the biggest stage in the world.
Gold: Mariya Savinova, Russia (1:56:19)
Silver: Caster Semenya, Kenya (1:57:23)
Bronze: Ekaterina Poistogova, Russia (1:57:53)
Mariya Savinova and Ekaterina Poistogova added to an impressive day for the Russian track and field team by capturing the gold and bronze in the 800-meter finals.
Gold: United States (3:16:87)
Silver: Russia (3:20:23)
Bronze: Jamaica (3:20:95)
After setting the world record in the 4x100-meter, the women came out hot and blew away the competition in the 4x400-meter finals.
Gold: Jamaica (36:84)
Silver: United States (37.04)
Bronze: Trinidad and Tobago (38.12)
The Jamaican team, anchored by Usain Bolt, set a world record in their gold medal victory. This is the sixth gold medal for Bolt in two Olympic appearances for the storied Jamaican sprinter.
Heading into the finals, the USA team finished first-place, but the Jamaicans' addition of Bolt for the final was clearly the edge they needed.