Ana Cláudia Lemos

South American records Lemos Silva improved her 100 m best to 11.57 seconds in 2009 and was chosen as a backup relay runner for the 2009 World Championships in Athletics, although she did not compete. The change saw Lemos Silva rapidly develop and at the 2010 South American Games, held at altitude in Medellín, she equalled Lucimar de Moura's South American record of 11.17 seconds. She won the 100 m individual and relay titles at the competition and took silver in the 4×400 metres relay. Later that season, she also completed a 100 m/4×100 m relay double at the 2010 Ibero-American Championships. She improved her 200 m best to 23.07 seconds at the Grande Premio Brasil Caixa de Atletismo and then claimed a national 100/200 m sprint double at the Brazilian championships – the Troféu Brasil de Atletismo. In 2010, she ran 11.15 in the 100m and broke the record that belonged to Lucimar Moura since 1999.

Lemos Silva began 2011 in good form, clocking 11.19 seconds and 23.09 seconds for the 100 and 200 m early in the year. At the 2011 South American Championships in Athletics, she won her first continental titles by defeating all comers in the 100 m and 200 m races and was also a runner-up in the relay. At the 2011 Military World Games in Rio de Janeiro she won three medals for Brazil: she set games records to win the 200 m and relay titles, but was narrowly beaten in the 100 m final by Ukraine's Mariya Ryemyen. She improved her 200 m best sixth tenths of a second at the 2011 Brazilian championships to set a South American record of 22.48 seconds breaking Lucimar de Moura's record, en route to retaining her national sprint titles. At the 2011 World Championships in Athletics, she was a semi-finalist in both individual sprints and the relay; she helped the team to a Brazilian record of 42.92 seconds in the heats and placed seventh in the final. Medals came at the 2011 Pan American Games, where she was fourth in the 100 m but won golds in the 200 m and relay events. In the relay, she led off a team including Vanda Gomes, Franciela Krasucki, and Rosângela Santos to break the national record yet again, crossing the line with 42.85 seconds. She was selected for the 200 m at the 2012 Summer Olympics but did not make it past the heats. Success came in the relay, however, as the Brazilian team improved the South American record to 42.55 seconds in the heats and placed seventh in the Olympic final.

2012–2016

Her 2013 season started in peak form as she broke the 100 m continental record with a run of 11.05 at the Grande Premio Brasil Caixa de Atletismo. However, she broke 11 seconds, running an impressive 10.93 seconds at the 29th edition of the Grande Prêmio Brasil/Caixa Governo de Pará de Atletismo, an IAAF World Challenge meeting, which took place in the tropical city of Belem. Unfortunately, the wind gauge during the race was too high therefore her time can't be recorded as a legal time. But, strangely and without official explanation, the CBAT (Brazilian Athletics Confederation) held a bizarre athlete change to the final, putting Vanda Gomes (who had never run the relay) instead of Rosangela Santos, to close the race. In the final, Brazil came second, almost tied with Jamaica and with great possibility to win the silver medal and knock the South American record when, at the last bat exchange, Vanda, who had been placed "in fire" in a World Championships final and without sufficient training to receive the baton, eventually leaving the baton fall.

Silva won gold in the 100 m, 200 m, and relay in the Brazil Trophy athletic contests held at Icarus Stadium Castro Mello. After winning the 100m dash in an interview she stated "Honestly, I liked the win but did not like the time" with her best recorded time for 2014 at 11.13.