The standard tournament is 5 turns per weekend. Let's keep your estimate of 100 times per game (50 * 2 players), 10 games, it's 5k Euro. Let's say we overestima

The standard tournament is 5 turns per weekend. Let's keep your estimate of 100 times per game (50 * 2 players), 10 games, it's 5k Euro. Let's say we overestimated something (the games going to byoyomi,) it's still 1k. As you say, not rich but with 4 tournaments per week, travelling around Europe, it's 4k less the expenses. Definitely a living and a lot of spare time.