Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The Solomon Islands National Club Championship was the former top-tier association football league in the Solomon Islands that ran from 2000 to 2010. It was run by the Solomon Islands Football Federation. The league was replaced by the Telekom S-League which started in the 2010/11 season and is the current top division league in the Solomon Islands.
The winners of the National Club Championship and the league club both played a two legged play-off for a place in the OFC Champions League. This format is used for the current-running league. Koloale FC won it five times, the most out of its 10 year running.