Yeah, wasn't rly necessary to change the contender from 12->15Min, it takes to long now aswell
It was pretty perfect with 12min. In this one so many rec-players are playing, they want to have some fun, which they have due to the deepstructure @ the beginning, but wont play forever. please change it back to 12 min and keep in Mind that your main market is EU, so plan tourneys for EU players, meaning pretty much no weekday MTT which starts before 22:00 CET shpuld take longer then 4-5CET.
Your 23:00 55$ 5k Counterpunch shouldn't be 12min as it take just to long, make it 10min and way more players would play it.
You should take Length and Finishtime more into consideration when implementing games.