Pairings of round 4 - 2021-05-16 - 17:00
| Brd. | White | Ran. | Pts. | FIDE | Fed. | Res. | Black | Ran. | Pts. | FIDE | Fed. |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Bagues Castro, Marien | 4 | 3.0 | 1588 | Ensidesa | 1-0 | Gutierrez Garcia, Marcos | 5 | 3.0 | 1425 | Valdesva |
| 2 | Pedreira Garcia, Nicolas | 7 | 3.0 | 1353 | Vetusta | 1-0 | Alvarez Diaz, Miguel | 9 | 2.5 | 1222 | Siero |
| 3 | Bueno Roza, Mateo | 22 | 2.0 | 0 | Ciudad Naranco | 0-1 | Paton Alvarez, Ivan | 2 | 2.0 | 1763 | Grupo 64 |
| 4 | Antuna Pavon, Lucas | 3 | 2.0 | 1726 | Antonio Rico | 1-0 | Lastra Diaz, Diego | 15 | 2.0 | 1073 | Oviedo 93 |
| 5 | Valeiro Gonzalez, Aitor | 11 | 2.0 | 1136 | Antonio Rico | 0-1 | Vega Garcia, Alejandro | 19 | 2.0 | 0 | Vetusta |
| 6 | Alonso Agudo, Mario | 28 | 2.0 | 0 | Alfil | 0-1 | Fraga Veiguela, David | 10 | 1.5 | 1143 | Ciudad Naranco |
| 7 | Junquera Guerrero, David | 8 | 1.5 | 1232 | Grupo 64 | ½-½ | Varela Cano, Hugo | 6 | 1.5 | 1382 | Vetusta |
| 8 | Ilinca Ilinca, Filip Antonio | 20 | 1.5 | 0 | Gijon 64 | 1-0 | Antuna Alonso, Adrian | 23 | 1.5 | 0 | Antonio Rico |
| 9 | Consuegra Trapiella, Paula | 27 | 1.5 | 0 | Antonio Rico | 0-1 | Gonzalez Fernandez, Silvia | 12 | 1.0 | 1127 | Grupo 64 |
| 10 | Lucas Gutierrez, Elide | 25 | 1.0 | 0 | Penamellera | 0-1 | Cuartas Sanchez, Angel | 14 | 1.0 | 0 | Ensidesa |
| 11 | Le Saos Diaz, Patrick | 30 | 1.0 | 0 | Siero | 1-0 | Lamuno Fernandez, Alberto | 21 | 1.0 | 0 | Ateneo Obrero 1881 |
| 12 | Zapico Del Amo, Mireya | 31 | 1.0 | 0 | Peon Escarlata | 0-1 | Diaz Perez, Olai | 24 | 1.0 | 0 | Siero |
| 13 | Yuste Rocandio, Dario | 26 | 0.5 | 0 | Gijon 64 | 0-1 | Iglesias Alvarez, Luis | 29 | 0.5 | 0 | Ciudad Naranco |
| 14 | Vega Caicedo, Daniel | 17 | 0.0 | 1020 | Casino La Felguera | + | |||||
| 15 | Fernandez Fernandez, Aram | 13 | 1.5 | 1117 | Antonio Rico | = | |||||
| 16 | Fernandez Rodriguez, Olaya | 16 | 0.5 | 1042 | Antonio Rico | = | |||||
| 17 | Alvarez Mesa, Angel | 18 | 0.5 | 1018 | Ciudad Naranco | = | |||||
| 18 | Sierra Vallina, Lionel | 1 | 2.0 | 1923 | Ensidesa | 0 | |||||