You can still use our game servers and your results will be logged, but they will be saved anonymously.
Follow instructions on Teeworlds Docs page.
After logging into Teerace website, go to settings page.
Locate "API token" tab and copy your token.
Go to your teeworlds configuration file and add at the end of this file:
Replace BUTTON with the button of your choice.
Connect to a Teerace server and hit the button you have chosen in the 3rd step.
You will have to press the button each time you enter a Teerace server. Have fun!