Emparejamiento de la ronda 4 el 2021-06-13 a las 09:30
| M. | Blancas | Ran. | Pts. | FIDE | Fed. | Res. | Negras | Ran. | Pts. | FIDE | Fed. |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ruiz Font, Elisabet | 1 | 3,0 | 2080 | Gipuzkoa | 0-1 | WCM Abrisqueta Zudaire, Leyre | 2 | 3,0 | 1999 | Nafarroa |
| 2 | Perez Sodupe, Cecilia | 3 | 2,5 | 1854 | Gipuzkoa | 1-0 | Tornay, Haizea | 4 | 2,0 | 1606 | Gipuzkoa |
| 3 | Larrakoetxea Gorostidi, Jugatx | 14 | 2,0 | 0 | Bizkaia | 1-0 | Landa Mendizabal, Maitane | 13 | 2,0 | 0 | Araba |
| 4 | Abrisqueta Zudaire, Ines | 5 | 1,5 | 1540 | Nafarroa | 1-0 | Feal Fernandez, Rebeca | 11 | 1,5 | 1082 | Araba |
| 5 | Zubizarreta Landera, Maddi | 7 | 1,0 | 1296 | Bizkaia | 1-0 | Vega Bilbao, Leire | 9 | 1,5 | 1142 | Bizkaia |
| 6 | Apellaniz Perez, Miriam | 10 | 1,0 | 1135 | Gipuzkoa | 0-1 | Apellaniz Perez, Estibaliz | 6 | 1,0 | 1369 | Gipuzkoa |
| 7 | Fontaine, Josette | 12 | 1,0 | 1009 | Gipuzkoa | 0-1 | Barcala Arcauz, Ayala | 8 | 1,0 | 1219 | Araba |
| 8 | Camara Sanz, Irati | 16 | 0,0 | 0 | Araba | 0-1 | Eguia Larrinaga, Itsasne | 15 | 0,0 | 0 | Araba |