Maybe someone can help me out here - I'm looking for books with high limits on Chinese/Korean League of Legends. Doesn't necessarily have to be ultraplay (odds provider) but I'm familiar with them and their lines are really soft and often mispriced.
Ultraplay books like nitrobetting/nitrogensports have 0.15 BTC ~ live/pre-game lines ($6k USD+) but I inevitably get limited after winning mid-five figures.
I've gone through betonline/sportsbetting.ag as well who also use ultraplay for esports.