Jamaica’s Usain Bolt holds up a “Wenlock,” one of the London Games’ mascots, as he celebrates winning the 100-meter dash as Jamaican Yohan Blake, who won bronze, watches. (Phil Noble/Reuters)

LONDON – Here’s what you might have missed from this past weekend’s Olympic action:

Jamaica’s Usain Bolt: He successfully defended his gold medal in the 100-meter dash in an Olympic-record 9.63 seconds, finishing ahead of compatriot Yohan Blake (9.75) and American Justin Gatlin (9.79). Trinidad and Tobago’s Richard Thompson placed seventh in 9.98 seconds and Jamaica’s Asafa Powell took eighth in 11.99.

Bolt eclipsed his Olympic record set at the Beijing Games in 2008 (9.69 seconds) and was .05 seconds off the world record of 9.58 he established at the world championships in 2009.

Brazil’s César Cielo: He took the bronze medal in the 50-meter freestyle in 21.59. France’s Florent Manaudou won the gold in 21.34 seconds, followed by America’s Cullen Jones in 21.54. Cielo, who won gold in the event at the Beijing Games in 2008, held off countryman Bruno Fratus, who finished fourth in 21.61. Trinidad and Tobago’s George Bovell finished seventh in 21.82.

“Manaudou had the race of his life and his time was better than my best time this year,” Cielo told reporters.

Argentina’s Juan Martín del Potro: He earned the bronze medal in tennis with a 7-5, 6-4 victory over Serbia’s Novak Djokovic at the All England Club. Del Potro had his gold-medal aspirations end in a 3-6, 7-6 (5), 19-17 to Switzerland’s Roger Federer in the longest three-set men’s match ever played in the modern era, as it lasted four hours and 26 minutes.

Jamaica’s Shelly-Ann Fraser-Pryce celebrates after winning the 100-meter dash in 10.75 seconds in the London Games. She also won the event at the Beijing Games in 2008. (Dylan Martinez/Reuters)

Jamaica’s Shelly-Ann Fraser-Pryce: She made her claim as being the world’s fastest woman for the second straight Olympics by winning the 100-meter dash in 10.75 seconds, just ahead of American Carmelita Jeter (10.78) and Jamaica’s Veronica Campbell-Brown (10.81).

Colombia’s Caterine Ibargüen: She won silver in the triple jump with a mark of 14.8 meters, finishing behind Kazakhstan’s Olga Rypakova’s 14.98 and ahead of Olha Saladuha of the Ukraine (14.79). Jamaicans Kimberly Williams and Trecia Smith placed sixth and seventh, respectively.

Cuba’s Idalys Ortiz Bocourt: She won gold in the plus-78-kilogram (171-pound) judo competition by defeating Japan’s Mika Sugimoto in the final.

Cuba’s Leuris Pupo: He won the 25-meter rapid fire pistol competition with 34 points, four ahead of India’s Vijay Kumar and seven more than China’s Ding Feng.

Brazil’s Robert Scheidt and Bruno Prada: The duo won bronze in the star sailing competition, finishing behind Sweden’s Max Salminen and Fredrik Lööf and Great Britain’s Andrew Simpson and Iain Percy. The Brazilians finished with 40 points, with the Swedes scoring 32 and the Brits 34.

Jamaica’s Novlene Williams-Mills: She placed fifth in the 400-meter dash in 50.11 seconds. American Sanya Richards-Ross won gold in 49.55, followed by Great Britain’s Christine Ohuruogu (49.70) and American DeeDee Trotter (49.72). Jamaica’s Rosemarie Whyte placed eighth in 50.79.

Here’s what you should keep an eye on Aug. 7:

Men’s triathlon: Argentina’s Gonzalo Tellechea, Brazil’s Reinaldo Colucci and Diogo Sclebin Costa Martins, Chile’s Felipe Van de Wyngard, Colombia’s Carlos Quinchará and Mexico’s Crisanto Grajales will compete in a competition that consists of 1.5-kilometer (.93-mile) swim, a 43-kilometer (26.7-mile) bike ride and a 10-kilometer (6.2-mile) run.

Men’s RS Sailboard: Brazil’s Ricardo Santos advanced to the final race, where he’ll compete against Canada’s Zac Plavsic, France’s Julien Bontemps, Great Britain’s Nick Dempsey, Germany’s Toni Wilhelm, Greece’s Byron Kokalanis, the Netherlands’ Dorian Van Rijsselberghe, New Zealand’s Jon-Paul Tobin, Poland’s Przemyslaw Miarczynski and Switzerland’s Richard Stauffacher.