Castillo Sanjuan, Daniel

Daniel Castillo Sanjuan, a 32-year-old Spanish player, is rated 2061 — his current career high and sitting in the top 9% of players worldwide. He is progressing steadily with +25 Elo over the past 12 months. 23 rated games in the past year (≈19/year long-term). Recent standard appearances include Campeonato de Euskadi Equipos 2026 - Zonal Bizkaia - Grupo P Rondas 9, Campeonato de Euskadi por Equipos DH-26 Rondas 5-7, and Campeonato de Euskadi Equipos 2026 - Zonal Bizkaia - Grupo P Rondas 5-7. Also played 2 blitz events (including I Open Internacional de Ajedrez de Zaragoza) recently. He had 3 career breaks: 26 months (2015–2018), 39 months (2018–2021, COVID-19 included) and 17 months (2022–2023).

At junior level, he reached #62, #53, #53 and #21 nationally in U20, U18, U16 and U14.