Real Sociedad B has achieved an epic promotion to Primera Federación Iberdrola after a thrilling comeback against FC Ona Sant Adrià. The Basque team, led by their coach, started the season with a second-place finish in Group 1 of Segunda Federación. In the promotion playoffs, Real Sociedad B faced Málaga CF, managing a 0-0 draw in the first leg and a 2-1 win in the return leg. The final against FC Ona Sant Adrià began with a 4-1 defeat in the first leg, but Real Sociedad B managed to equalize the score in the return leg with a 4-1 win in the 90+9 minute, thanks to a goal by Echeverria. The penalty shootout decided the promotion, and Mendiburu became a heroine by saving the decisive shot. Real Sociedad B thus joins Athletic Club B, Real Unión Santa Cruz de Tenerife, and Sport Extremadura CD in Primera Federación Iberdrola for the 2026-2027 season. The Basque team has demonstrated its worth and determination in this exciting promotion. The heroic feat of Real Sociedad B will be remembered by fans for a long time. The promotion to Primera Federación Iberdrola is a big step forward for the team. Real Sociedad B has worked hard to achieve this goal. The team has shown its ability to overcome obstacles and achieve important victories. The players and staff are ecstatic about the promotion. The team's fans are also celebrating this great achievement.