Talk:Experience and Rank/@comment-114.79.56.247-20150603161748/@comment-24430017-20150603165538

At the start of each month the rankings reset. So you can experience wild changes in rank with slight activities. Doing EX-OP like 1-5 adds a lot of points (75 points) which is probably at least a few days play for you. Each point is worth approximately 1400 HQ xp.