Here are the latest details and dates for the main seniors events in 2025. Please note that qualification for most seniors events states that you must reach the age requirement within the calendar year of the event, e.g. to play in a 50+ event you must be aged 50 by the end of that calendar year and likewise for the 65+ age group. In date order, the main seniors events are as follows …

British Seniors Chess Championships
The British Chess Championships, Seniors events will take place on 4-10th August in Liverpool, with two separate 7-round Seniors events (50+ and 65+) and further details can be found at https://www.britishchesschampionships.co.uk/

European Senior Chess Championships (ESCC)
The European Senior Chess Championship 2025 will be held in Rabac (not Porec as originally announced), Croatia, from 26th September to 6th October but there are no further details at this stage.

World Senior Chess Championships (WSCC)
FIDE has announced that this will take place in Gallipoli, Italy from 20 October to 2nd November.  Details can be found in the Invitation document with full details (PDF in English) and also on the official website.  It is interesting to note that for the first time there will be special prizes for the best performers over the age of 75, although FIDE haven’t yet offered a separate 75+ section.