How to Change Which Tierlist TierTagger Displays
TierTagger pulls your tier from the Vanilla PvP Tierlist by default, but it also supports other tierlists and multiple gamemodes. If the tag next to your name shows the wrong tierlist or the wrong gamemode, you need to point the mod at the right source.
Opening the TierTagger Config
Open your mod config screen (through the mods list or the in-game config keybind, depending on your mod loader) and find the TierTagger entry. Inside you will see options for the tierlist source and the gamemode category. The mod supports the standard Vanilla PvP Tierlist plus other tierlists, and the gamemode categories include sword, pot, nethpot, axe, and smp.
Selecting Your Tierlist and Gamemode
Pick the tierlist you actually want your tag pulled from, then pick the gamemode. For example, if you mostly play nethpot, set the gamemode to nethpot so the tag reflects that tier instead of your sword tier. Save the config and rejoin or refresh so the tag updates.
If your tag still looks wrong, confirm your username matches the one listed on the tierlist site, since the mod matches by name. A name change or an unlisted alt will show no tier until the tierlist updates.