Click on the Trophy icon to go directly at your position on the path.
Click on the Chest icon to see the Leaderboard's rewards.
The green checkpoint is your highest trophy count earned in this season. It stays even if you lose trophies.
Rewards/Trophies or Leagues.
*If you lose trophies, you can't go back and earn the same reward two times.
End of Season Rewards
At the end of the season you are rewarded based on your ranking. You need to be atleast in Wood II or higher. Note: Those ending in the top 200 get both the Top 200 Reward and the Crystal III reward.