Here is the full list of all 12 Team Racing League achievements.
Race 42 km
Race 82 km
Obstruct 25 players using blocks
Obstruct 100 players using blocks
Obstruct 25 players using anchor
Obstruct 100 players using anchor
Obstruct 25 players using a roadblock
Obstruct 100 players using a roadblock
Perform 25 Solo Boosts
Perform 100 Solo Boosts
Avoid being destroyed after losing a race
Complete every Training in Practice