Pairings of round 4 - 2021-12-29 - 17:30
| Brd. | White | Ran. | Pts. | FIDE | Fed. | Res. | Black | Ran. | Pts. | FIDE | Fed. |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | FM Prieto Aranguren, Alain | 3 | 3.0 | 2256 | Eus - Abadiño | ½-½ | IM Franco Alonso, Alejandro | 2 | 2.5 | 2419 | Eus - Gros |
| 2 | IM Huerga Leache, Mikel | 1 | 2.5 | 2503 | Nav - San Juan | 1-0 | Arauz Alonso, Fernando | 4 | 2.0 | 2104 | Mad - Jaque Mate |
| 3 | Ruiz Abad, Juan Manuel | 8 | 2.0 | 2077 | Eus - Portugalete | 1-0 | Goiria Egidazu, Jon Asel | 9 | 2.0 | 2034 | Eus - Zornotza |
| 4 | Etxagibel Larranaga, Asier | 6 | 2.0 | 2084 | Eus -Arrasate/Arlutz | 1-0 | Vesga Izeta, Markel | 7 | 1.5 | 2080 | Eus - Santikutz |
| 5 | Elexpe Garcia, Aritz Eder | 13 | 1.5 | 1804 | Eus - Abadiño | ½-½ | Reguillaga Elias, Manex | 11 | 1.5 | 1906 | Eus - Zaldi Baltza |
| 6 | Hernando Casas, Jose Manuel | 10 | 1.0 | 1989 | Eus -Arrasate/Arlutz | ½-½ | Alcaide Luque, Aitor | 5 | 1.5 | 2101 | Eus -Arrasate/Arlutz |
| 7 | Gallego Bereziartua, Aitor | 17 | 1.0 | 1571 | Eus -Arrasate/Arlutz | 0-1 | Vara Del Bosque, Daniel | 16 | 1.0 | 1676 | Eus - San Viator |
| 8 | Regillaga Otano, Jon | 15 | 0.5 | 1677 | Eus - Zaldi Baltza | 0-1 | Calvo Gomez, Unai | 18 | 1.0 | 1514 | Eus - Abadiño |
| 9 | Garcia San Martin, Alberto | 12 | 1.0 | 1899 | Eus - Martintxo | = | |||||
| 10 | Bilbao Gaubeka, Jon | 14 | 0.0 | 1756 | Eus - Xake Mate Berm | 0 | |||||