| Bo. | No. | | White | Rtg | Pts. | Result | Pts. | | Black | Rtg | No. |
| 1 | 59 | | Rubi Lopez Bryan | 1600 | 5 | 0 - 1 | 5½ | | Valdes Torres Josue | 1757 | 4 |
| 2 | 5 | | Salas Torres Pamela | 1753 | 4½ | 1 - 0 | 5 | | Hirschkind Blanco Dominic | 1634 | 18 |
| 3 | 9 | | Leon Villalobos Carlos | 1693 | 4½ | 0 - 1 | 4½ | | Castro Garcia Ileana | 1722 | 6 |
| 4 | 11 | | Alfaro Leon Andrey | 1686 | 4½ | 0 - 1 | 4½ | | Bustamante Grijalba Ariadna | 1721 | 7 |
| 5 | 12 | | Mora Granados Esteban | 1677 | 4 | 0 - 1 | 4½ | | Quesada Jacobo | 1600 | 56 |
| 6 | 25 | | Abarca Mendez Erick | 1606 | 4 | 0 - 1 | 4 | | Gonzalez M Oscar | 1600 | 39 |
| 7 | 33 | | Bonilla Morales Kevin | 1600 | 4 | 1 - 0 | 4 | | Paredes Jean Franco | 1600 | 54 |
| 8 | 65 | | Soto Alfaro Braulio | 1600 | 4 | 1 - 0 | 4 | | Calvo Luis Guillermo | 1600 | 35 |
| 9 | 2 | | Fallas Saborìo Alejandro | 1789 | 3½ | ½ - ½ | 3½ | | Cedeño Steve | 1627 | 20 |
| 10 | 22 | | Tapia Alvarez Alejandro | 1620 | 3½ | 0 - 1 | 3½ | | Castro Ulloa Rolando | 1766 | 3 |
| 11 | 13 | | Murillo Gonzalez David | 1673 | 3½ | 0 - 1 | 3½ | | Jimenez Garcia Ivan | 1600 | 47 |
| 12 | 19 | | Gonzalez Hidalgo Esteban | 1633 | 3½ | 1 - 0 | 3½ | | Soto Cordoba Anthony | 1612 | 24 |
| 13 | 1 | | Castro Richard Ixel | 1798 | 3 | 1 - 0 | 3 | | Gutierrez Wilberth | 1600 | 40 |
| 14 | 68 | | Solano Saltachin Javier | 0 | 3 | 0 - 1 | 3 | | Castro Garcia Alejandro | 1708 | 8 |
| 15 | 14 | | Marin Leon Valeria | 1664 | 3 | 1 - 0 | 3 | | Amador Aaron | 1600 | 28 |
| 16 | 23 | | Quiros Avendaño Alejandro | 1613 | 3 | 1 - 0 | 3 | | Guzman Hidalgo Nicolas | 1600 | 41 |
| 17 | 26 | | Aguilar Emanuel | 1600 | 3 | 1 - 0 | 3 | | Murillo Solano Paula | 1600 | 52 |
| 18 | 27 | | Alfaro Leon Allison | 1600 | 3 | 0 - 1 | 3 | | Torres Romero Cristian | 1600 | 66 |
| 19 | 30 | | Beckles Jose Pablo | 1600 | 2½ | 0 - 1 | 3 | | Porras Chavarria Pamela | 1600 | 55 |
| 20 | 45 | | Herrera Rodriguez Luis Manuel | 1600 | 2½ | 0 - 1 | 2½ | | Wong Amaya Ian | 1638 | 17 |
| 21 | 69 | | Solano Saltachin Ruth | 0 | 2½ | 0 - 1 | 2½ | | Campos Arguedas Adrian | 1600 | 36 |
| 22 | 16 | | Porras Chavarria Michael | 1655 | 2 | 1 - 0 | 2 | | Herrera Rodriguez Luis Enrique | 1600 | 44 |
| 23 | 57 | | Rojas Zarate Jose Ignacio | 1600 | 2 | 1 - 0 | 2 | | Arguedas Bolaños Sharline | 1600 | 29 |
| 24 | 58 | | Rosenstok Samuel | 1600 | 2 | 0 - 1 | 2 | | Cascante Juan Diego | 1600 | 37 |
| 25 | 62 | | Shih Gould Annie | 1600 | 2 | 0 - 1 | 2 | | Leon Vargas Mercedes | 1600 | 48 |
| 26 | 61 | | Sandi Allan | 1600 | 2 | - - + | 1½ | | Bustos Moises | 1600 | 34 |
| 27 | 15 | | Solis Isaac | 1658 | 1½ | - - + | 1½ | | Paredes Cristian | 1600 | 53 |
| 28 | 43 | | Herrera Granados Felipe | 1600 | 1 | - - + | 1 | | Herrera Rodriguez Victoria | 1600 | 46 |
| 29 | 63 | | Shih Gould Danny | 1600 | 1 | 1 | | | bye | | |
| 30 | 10 | | Alvarado Castro Francisco | 1692 | 5 | 0 | | | not paired | | |
| 31 | 21 | | Alvarado Castro Jeaustin | 1626 | 3½ | 0 | | | not paired | | |
| 32 | 31 | | Bonilla Morales Allison | 1600 | 3 | 0 | | | not paired | | |
| 33 | 32 | | Bonilla Morales Bryan | 1600 | 2 | 0 | | | not paired | | |
| 34 | 38 | | Cedeño Christopher | 1600 | ½ | 0 | | | not paired | | |
| 35 | 42 | | Herrera Boschini Gabriel | 1600 | 0 | 0 | | | not paired | | |
| 36 | 49 | | Lopez Gutierrez Andrey | 1600 | 0 | 0 | | | not paired | | |
| 37 | 50 | | Mora Portuguez Daniel | 1600 | 0 | 0 | | | not paired | | |
| 38 | 51 | | Mora Salas Jose | 1600 | 0 | 0 | | | not paired | | |
| 39 | 60 | | Sanchez Rodiguez Carlos | 1600 | ½ | 0 | | | not paired | | |
| 40 | 64 | | Solano Mena Javier | 1600 | 0 | 0 | | | not paired | | |
| 41 | 67 | | Zeledon Mikelin | 1600 | 0 | 0 | | | not paired | | |