SRS (Spaced Repetition)
A memorization technique that optimizes review timing
Definition
SRS (Spaced Repetition System) is a memorization algorithm based on Ebbinghaus's forgetting curve. It schedules your reviews at the optimal moment — just before you forget — to maximize retention while minimizing time spent reviewing. The principle: the better you know something, the longer the intervals between reviews. A concept you know very well will be reviewed in 30 days. A shaky one will be reviewed tomorrow. The algorithm calibrates each session to what your brain can absorb. Applied to poker ranges, SRS lets you hardwire your GTO ranges in just 5 to 10 minutes a day. You review the hands you know poorly, at the right time, until they become automatic reflexes. That's the difference between knowing your range in theory and playing it instantly under pressure. Modern apps like Forge.poker build SRS directly into the interactive 13×13 quiz.
With SRS, a range you've mastered to 95% will be reviewed in 21 days. A range at 60% will be reviewed tomorrow. The algorithm optimizes each review to avoid both over-reviewing and forgetting.