I finished fifth in hex19.ch.9.2.1. The three winners of that tournament were rightly moved up to hex19.ch.10.1.1. If more players were needed for hex19.ch.10.1.1, due to dropouts, I would have thought that Jonathon, who finished ahead of me in hex19.ch.9.2.1, and who has won all three of the Hex 19 that he's played against me, would have been moved up instead.
High rating (My rating is /too/ high.) might be part of it, but can't be the whole story. wojtex is rated higher than I am, but he's in league 3 for the Hex 19 championship 10, hex19.ch.10.3.1.
Put very simply, I think the following rule applies: If you have a higher rating than the average for a certain league (or are a top10 player regarding first league), and have never played in that league or higher before, you are automatically placed in that league. At least it was like that, some time ago...