Just wondering if there are any maps out there because I want to improve my quick nether portal skills.

use sethbling's data pack he has nether portal building as well as many other things that would help you on a speedrun. 

https://www.youtube.com/watch?v=UihtGJhK_-w

There's one made by Twig_ that is really helpful for speed portal, MLG bucket, and blaze killing.
https://youtu.be/wTzN97UnOs0

Is there a map dedicated to practicing quick portal?

Zruler6

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Minecraft: Java Edition

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If you save & quit/close the game at any point during the run, choose External.

Internal/External (Any%)

### Updated Legal Mods
- (**1.3.1-1.21.7**) State Output 1.2.3: Fix inworld state being set before Downloading Terrain screen goes away in pre 1.13.
- (**1.8-1.8.9**) Anchiale 3.2.0: Remove "Replace Save & Quit" button placement option.
- (**1.8, 1.8.9, 1.20.5-1.21.7**) Atum 4.2.1, 5.2.1, & 1.3.3: T

Updated legal mods + accidental resets

Rules v5

Update on version tracking for legal mods

Minecraft

Minecraft Speedrunning Questions Thread

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Full Netherite

How To Setup Random Seed 1.16.1 Mods? Can someone help me?

1.8.9 StandardSettings / Wall setup

Longest Survival Distance Traveled in the End

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