Resultados das quartas-de-finais das categorias 12, 14, 16 e 18 anos masculino e feminino do Campeonato Brasileiro Infanto-juvenil 2009.
12 anos masculino
Gabriel Sidney (PR) d. Lucas Raphael (RJ) 5/7 6/3 6/3
Andre Ponce (SP) d. Thiago Iglesias (RJ) 6/3 5/7 6/1
Pietro Silva (RS) d. Victor Castro (RS) 6/1 7/6(4)
Renato Junior (SC) d. Rafael Wagner (DF) 6/0 6/2
12 anos feminino
Julia Gomide (SP) d. Maria Silva (RJ) 6/2 6/3
Lara Soares (DF) d. Mariana Pinto (PA) 6/0 6/1
Giovanna Caputo (MG) d. Julia Pereira (SP) 6/4 6/0
Letícia Vidal (SP) d. Sthefanie Santos (SP) 6/1 6/0
14 anos masculino
Matheus Chain (SC) d. João Walendowsky (SC) 4/6 7/6(5) 6/2
Silas Cerqueira (BA) d. Eric Komati (SP) 6/2 6/1
Marcos Bernardes (BA) d. Juan Reys (RS) 6/1 6/0
Carlos Borges (MG) d. Fernando Tsuchiya (SP) 2/6 /4 6/1
14 anos feminino
Ingrid Martins (RJ) d. Isabella Camargo (SC) 7/5 6/4
Ana Thomaz (SP) d. Luana Trautwein (SC) 7/5 6/4
Ana Baran (SC) d. Mariana Humberg (SP) ret.
Carolina Alves (SP) d. Alory Pereira (SP) 6/2 6/3
16 anos masculino
Keruê Sell (RS) d. Fabio Costa (RJ) 6/1 6/2
Thiago Pinheiro (SP) d. Mario Littieri (SC) 7/6 6/1
Oscar Gutierrez (RS) d. Raul Francisquiny (SP) 5/7 6/0
João Sorgi (SP) d. Andre Tavares (PR) 6/1 6/1
16 anos feminino
Giovanna Tomita (SP) d. Fernanda Amaral (PR) 4/6 7/6(4) 6/0
Isabela Castro (MG) d. Stefania Haddad (SC) 6/2 4/6 6/1
Marina Danzini (SP) d. Manoela Chiacchio (SP) 6/0 6/0
Marcela Valle (MG) d. Julia Chieppe (ES) 6/3 6/2
18 anos feminino
Carla Forte (SP) d. Nathaly Kurata (SP) 7/5 6/3
Flavia Borges (SP) d. Gabriela Cé (RS) 6/2 6/4
Marina Boher (RS) d. Nayara Moraes (SP) 6/3 6/2
Flavia Bueno (SP) d. Juliana Pires (RS) 3/6 6/2 6/1
18 anos masculino
Lucas Bin (SP) d. Bernardo Coelho (DF) 6/4 5/7 6/3
Antun Mauricio(SP) d. Adolfo Filho (RJ) 7/5 6/2
Gustavo Ribeiro (DF) d. Guilhemre Destefani (SP) 6/3 6/2
Alex Blumenberg (SP) d. Bruno Sant`Anna (SP) 6/4 6/2