Emparejamiento de la ronda 4 el 2021-06-06 a las 09:30
| M. | Blancas | Ran. | Pts. | FIDE | Fed. | Res. | Negras | Ran. | Pts. | FIDE | Fed. |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Vega Bilbao, Leire | 3 | 2,0 | 1142 | Getxo | ½-½ | Unzueta Matin, Katixa | 4 | 2,5 | 1037 | Amorebieta |
| 2 | Gaviria Valencia, Gisela | 1 | 1,0 | 1484 | Santurtzi | ½-½ | Zubizarreta Landera, Maddi | 2 | 2,5 | 1296 | Santurtzi |
| 3 | Larrakoetxea Gorostidi, Jugatx | 6 | 2,0 | 0 | Sestao | 1-0 | Rodriguez Redondo, Romina | 5 | 1,0 | 0 | Santurtzi |
| 4 | Mira Gonzalez, Claudia | 8 | 0,0 | 0 | Getxo | 0-1 | Leon Balentzia, Bidane | 7 | 1,0 | 0 | Conteneo |