Tetralogy: (from Greek meaning “four discourse”) a compound work that is made up of four distinct works.
The DB Tetralogy is a compound work made up of 4 distinct races. Complete each of these races in a single calendar year to complete The Tet.
With each completed event, collect a special edition race patch. At the end of the year, those who complete The Tet will be awarded something to display those patches on.