Advancing league levels

Hi, I was wondering was is the rule to advance league levels? im running “Code Royale” and i beat the boss, also reaching top 4 in test arena, or do i have to reach top 1 in test arena? by the way during test arena i did also beat the boss… so im kindna confused.

You have to beat the top 1 (the boss). As shown in the current leaderboard, you have to beat JeperonVaudoise and the league boss (whose score is even higher).

Beating the boss in the IDE does not count. You have to beat the boss in the arena.