Post
The painful process of getting your muscle memory back after time away, because speedrun skills decay like milk in the sun.
Derusting is what runners call the process of rebuilding speed and consistency after taking a break from a game. Speedrun execution relies heavily on muscle memory and mental flow states that degrade without regular practice. A runner who had a 95% success rate on a trick might drop to 60% after two weeks away. Derust sessions involve practicing individual tricks, running segments on repeat, and doing full practice runs until the inputs feel natural again. The derust period varies by game complexity and time away; a simple NES game might take an afternoon, while a 3-hour RPG speedrun might need a week of sessions before the runner feels confident attempting a serious run.
Example
A Super Metroid runner returning after a month-long break might spend several streams just practicing boss fights and movement tech before attempting a full run. Chat might see them failing tricks they used to hit 9 times out of 10, slowly climbing back to consistency over a few days of streaming practice.
Why it matters
Derusting is the mundane reality behind the highlight reels. It's a reminder that speedrunning mastery isn't a permanent state but an ongoing commitment that requires regular maintenance. Understanding derust also helps runners plan around breaks rather than abandoning a game entirely when life gets in the way.
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