Juan Carlos has been the Technical Director of all previous editions of the Grand Slam Masters’ Final and he is a very experienced director of top level tournaments.
He has been the director of:
- 8 Chess Masters Finals
- Iberoamerican Individual Championship 2015
- European Club Cup 2014
- World Blind Cup
- Blind matches between Veselin Topalov and Judit Polgar
- Match between humans and computers
International arbiter since 2007. National arbiter since 1990.
Main events as chess arbiter:
- Iberoamerican Individual Championship 2015
- Chief arbiter of the Ciudad de Pontevedra International Open (3 editions): 2013-2015
- Chief arbiter of the Sanxenxo International Open (7 editions): 2009-2015
- Chief arbiter of the Spanish Women Championship 2011
- Chief arbiter of the Spanish Championship 2007
- Table arbiter of the Calvía Chess Olympiad 2004
- Assistant arbiter of the European Zone Championship (Mondariz) 2000
- More than 20 GM and IM norms closed tournaments