Tournament points are a special type of currency.
They are denoted by a circle with a T. You can see your current points next to the player's skill level as well as the weapon upgrades window.
They can only be obtained by winning a place in the Tournament. Placing between ranks 1 and 200 will grant you variable amounts of tournament points, more of which is explained on the Tournament page.
It is the only type of currency that can not be spent/lost. When a threshold is reached for tournament-unlockable item, it is automatically unlocked.