50th Cotswold Chess Congress over the Spring Bank Holiday weekend in the beautiful setting of King's School, Gloucester. 26-28 May '18. More information, including on-line entry form through Facebook "Cotswold Chess Congress"
Southampton Rapidplay, St Denys, Sat 2 June
More information on the Soton Chess League website and also Hampshire Chess. A popular 1 day event and likely to be attractive to many Dorset players