Olimpíada de Matemática do Grande ABC
The Olimpíada de Matemática do Grande ABC, or OMABC is a mathematical competition for pre-collegiate Brazilian students of Grande ABC region, composed by the following cities:
- Santo André
- São Caetano do Sul
- São Bernardo do Campo
- Diadema
- Mauá
- Ribeirão Pires
- Rio Grande da Serra
Awards
Students
The participants are ranked based on their individual scores. Medals are awarded to the highest ranked participants, such that slightly less than half of them receive a medal. Subsequently, the cutoffs are chosen such that the ratio of gold to silver to bronze medals awarded approximates 1 : 2 : 3.- Gold medal
- Silver medal
- Bronze medal
Schools
- Trophy: For the schools whose students received at least a golden medal.
- Honorable Mention: For the schools at least one student received an award.
Champions of OMABC
Schools awarded with trophies
| Edition | Year | Schools awarded with trophies |
| 1 | 2004 Details | Colégio Ábaco Colégio Gradual Colégio Eduardo Gomes Colégio Liceu Jardim EE Wallace Cockrane Simonsen Educandário Santo Antônio |
| 2 | 2005 Details | Educandário Santo Antônio Colégio Harmonia Colégio Ábaco Colégio Eduardo Gomes Colégio Liceu Jardim Colégio Brasília Colégio Metodista Colégio Termomecanica Centro Educacional Objetivo |
| 3 | 2006 Details | Colégio Harmonia Centro Educacional Objetivo Colégio Arbos Colégio Brasília ETE Jorge Street Centro Educacional Objetivo |
| 4 | 2007 Details | Colégio Liceu Jardim Centro Educacional Interação Centro Educacional Objetivo Colégio Etapa |
| 5 | 2008 Details | Centro Educacional Objetivo Externato Santo Antônio Colégio Barão de Mauá EE Augusto de Oliveira Jordão Colégio Liceu Jardim |
| 6 | 2009 Details | Colégio Barão de Mauá Colégio Liceu Jardim |
| 7 | 2010 Details | Centro Educacional Objetivo Colégio Barão de Mauá Colégio Eduardo Gomes Colégio Liceu Jardim Colégio Petrópolis ETE Júlio de Mesquita |
| 8 | 2011 Details | Colégio Eduardo Gomes Colégio Liceu Jardim Colégio Singular |
| 9 | 2012 Details | EMEF Leandro Klein Colégio Eduardo Gomes Colégio Liceu Jardim Colégio Singular EMEF Cecília Meireles |
| 10 | 2013 Details | EMEF Professor Rosalvito Cobra Colégio Eduardo Gomes Colégio Metodista Colégio Liceu Jardim Colégio Ábaco Externato Santo Antônio Centro Educacional Objetivo - Unidade Frei Gaspar |
| 11 | 2014 Details | EMEF Professor Rosalvito Cobra Colégio Liceu Jardim Colégio Termomecanica |
| 12 | 2015 Details | Colégio Termomecanica Colégio Liceu Jardim Colégio Eduardo Gomes Colégio Petrópolis |
| 13 | 2016 Details |