Yes, the "Leaderboard" promotion is something completely different. You are competing on a monthly basis for your market on a scoreboard for who can get the most TCs earned. Based on your position at the end of the month, you are awarded bonus TCs. These bonus TCs are NOT eligible to be doubled during the month of February.
You do have to "opt-in" for this promotion and you can check your standings in your MY TR account. More info on this promotion here:
https://www.caesars.com/content/dam/...236.1508942976