The Leaderboard positions are constantly changing. To make sure that the game knows which position you finished in - and which rewards you should get - you need to play with a strong and stable wifi connection.

In the Leaderboard there is a pop-up which tells you the status of your rewards sync.

• If it says "Your progress was synced successfully", then your position and rewards will match.
• If it says "Check your internet connection to sync your progress", you need to follow these instructions before the reward timer expires
  • If you do not sync your progress in time, then you will only receive the rewards which were last synced by the game. The Idle Miner Tycoon team will not be able to verify or credit any rewards which were not synced and sent automatically