http://www.mariokart64.com/mkdd/
Here you can see the leaderboards for Time Trials. The site looks outdated, but it's still very active.
I recommend checking out the standards: http://www.mariokart64.com/mkdd/standardc.php to see which standards your Time Trial times are.
Another thing to keep in mind is that 50hz is allowed for Time Trials, and that there are 3 rankings: Combined (50hz and 60hz), 60hz rankings, and 50hz rankings.
If you have any questions (for example how to submit times), feel free to ask in the MKDD discord: https://discord.gg/zhzfxZg
Hello everyone! Recently a poll was sent out in the MKDD Discord about whether to switch to the in-game timer for Grand Prix speedruns. If you're confused as to why, you can watch these videos for more information:
