Advice on using Custom Post Types

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One possible solution:

  • Custom Post Type draw-results, where each post is a contest/game result
  • Custom Taxonomy contest (or game), where each term is a different contest/game
  • When you create a draw-results post, taxonomize it using the appropriate contest (or game) term.

EDIT

From your updated question:

Some games are televised, some arent so there will be custom things like presenter, and celebrity guest presenter, aswell as location in some rare cases, its not a big issue for these to be on all draw games even those that aren’t televised. This I presume would use the custom meta fields.

Exactly. Things like “presenter”, “celebrity guest presenter”, and “location” are unique to a given post, and are well-suited to custom post meta.

Especially since you also want to have a “normal” blog, I would definitely go with the CPT route for your lottery results. Though, you could simply exclude the lottery-results category/categories from your normal blog feed.