[Event "Pan American-ch U08"]
[Site "Cali"]
[Date "2015.07.03"]
[Round "9"]
[White "Martinez Contreras, Matias"]
[Black "Guerra, Jose2222"]
[Result "1-0"]
[ECO "C62"]
[PlyCount "17"]
[EventDate "2015.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. h3 d6 5. Ke2 h6 6. Ke1 d5 7. exd5 Qxd5 8. Nxe5 Qd4 9. Qe2 1-0

[Event "Pan American-ch U08"]
[Site "Cali"]
[Date "2015.07.02"]
[Round "7"]
[White "Mendez, Samuel"]
[Black "Martinez Contreras, Matias"]
[Result "1-0"]
[ECO "C55"]
[PlyCount "31"]
[EventDate "2015.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. 0-0 0-0 6. d3 d6 7. Ng5 h6 8. Nh3 Bxh3 9. gxh3 Nd4 10. Be3 Qe7 11. Bxd4 Bxd4 12. Qf3 Bxc3 13. bxc3 Kh8 14. Kh1 d5 15. exd5 Nxd5 16. Bxd5 1-0

[Event "Pan American-ch U08"]
[Site "Cali"]
[Date "2015.07.02"]
[Round "8"]
[White "Ortiz Zabaleta, Andres Camilo"]
[Black "Martinez Contreras, Matias"]
[Result "0-1"]
[ECO "C20"]
[PlyCount "10"]
[EventDate "2015.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Qh5 Nc6 3. Bc4 g6 4. Qg4 Nf6 5. Qe2 Bc5 0-1

[Event "Pan American-ch U08"]
[Site "Cali"]
[Date "2015.07.01"]
[Round "5"]
[White "Fonseca Ramirez, Miguel Angel"]
[Black "Martinez Contreras, Matias"]
[Result "1-0"]
[ECO "C55"]
[PlyCount "33"]
[EventDate "2015.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bc4 Nf6 5. Ng5 0-0 6. 0-0 h6 7. Nf3 d6 8. d3 Bg4 9. h3 Bxf3 10. Qxf3 Nd4 11. Qd1 Qd7 12. Bd2 Rfd8 13. Ne2 Nxe2+ 14. Qxe2 Bd4 15. Rab1 b6 16. c3 Bc5 17. b4 1-0

[Event "Pan American-ch U08"]
[Site "Cali"]
[Date "2015.07.01"]
[Round "6"]
[White "Martinez Contreras, Matias"]
[Black "Julio Vasquez, Alfonso"]
[Result "1/2-1/2"]
[ECO "C41"]
[PlyCount "5"]
[EventDate "2015.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Bc4 1/2-1/2

[Event "Pan American-ch U08"]
[Site "Cali"]
[Date "2015.06.30"]
[Round "4"]
[White "Martinez Contreras, Matias"]
[Black "Socha, Juan Pablo"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "26"]
[EventDate "2015.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. d3 h6 6. Bd2 Ng4 7. 0-0 d6 8. Nd5 Be6 9. h3 Bxd5 10. Bxd5 Nf6 11. Bxc6+ bxc6 12. Qe2 0-0 13. c3 Rb8 1-0

[Event "Pan American-ch U08"]
[Site "Cali"]
[Date "2015.06.29"]
[Round "3"]
[White "Martinez Contreras, Matias"]
[Black "Cruz Beltran, Ismael Josue"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "20"]
[EventDate "2015.06.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Bc4 Nc6 4. Nc3 Bc5 5. 0-0 0-0 6. d3 d6 7. Bg5 h6 8. Bh4 Bg4 9. Nd5 Nxd5 10. Bxd5 Nb4 0-1

[Event "Cali Parada op 4th"]
[Site "Cali"]
[Date "2015.05.31"]
[Round "7"]
[White "Gonzalez, Leandro"]
[Black "Martinez Contreras, Matias"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "33"]
[EventDate "2015.05.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bc4 Nf6 5. d3 d6 6. Be3 Bxe3 7. fxe3 Bg4 8. a3 a6 9. Ba2 0-0 10. h3 Bxf3 11. Qxf3 Ne7 12. g4 h6 13. h4 a5 14. g5 hxg5 15. hxg5 Ne8 16. Qh5 Ng6 17. Qh7# 1-0

