First you need to create a post for the event and associate it with the correct category – which in this case is the Prebendal Manor Cup. The post title should include the year. It will then immediately appear under the 2021 section of https://blewburycroquetclub.org.uk/competitions/ – i.e. Competitions. Inside this post you should include various “shortcodes” which pick up information from the database. A competition may make use of multiple shortcodes. Initially it may make use of an “Opportunity”. This has been written up at: https://doc.croquet-websites.org.uk/members-signup/ and allows people to sign up. Once you have the names you have to decide how many blocks you need
The SC ladder is not an “opportunity” as it was not something you signed up to in advance.