The Men's 57 kg event at the 2010 South American Games had its quarterfinals held on March 22, the semifinals on March 24 and the final on March 27.

Gold	Silver	Bronze
César Villarraga  Colombia	Éverton Lopes  Brazil	Erick Bone Banguera  Ecuador Juan Carrasco  Argentina

First Round

Quarterfinals

Semifinals

Final

Juan Carrasco (ARG)

20

Humberto Guarachi (BOL)

10

Juan Carrasco (ARG)

Éverton Lopes (BRA)

RSC

Éverton Lopes (BRA)

RSC

Daniel Muñoz Tapia (CHI)

Éverton Lopes (BRA)

3

César Villarraga (COL)

7

Erick Bone Banguera (ECU)

RSC

Omir Rodriguez (PAN)

Erick Bone Banguera (ECU)

6

César Villarraga (COL)

14

Héctor Manzanilla (VEN)

6

Luis Miranda Garcia (PER)

0

César Villarraga (COL)

22

César Villarraga (COL)

11

• Report