One of the oldest events in the UK, this event was for many years run by Bristol club in the town hall in Marlborough in Wiltshire, a location chosen to easy driving in pre-motorway days. It then moved to Keynsham before settling down in Bath, with that club taking over running it.
Part of London Open, the Lightning Tournament is held on one of the evenings.
3 round McMahon tournament. Run first 1983 and restarted by a different organiser in the 1990s. Held in 2002 to celebrate the Golden Jubilee and restarted in 2013.
Early events known as the Woodford tournament. The 1972 event was a handicap tournament.
Ceased in 2010
5 round McMahon run by Belfast Go Club. In 1992 the club also ran its own event.
Run by any club on behalf of the BGA.
Cambridge ran the 2011 edition early in 2012.