Doctor GamesHow ranks D–SS and pp work
Every run in Rhythm Guru ends with three numbers: accuracy, a letter rank and — on ranked songs — pp. Here is exactly how each one is calculated, so you know what to practise to climb the ladder.
Hit judgements
Every note you tap is judged by how close it was to the line: Perfect, Good or Bad. A note that passes without a tap is a Miss. If your judgements lean early or late on every song, calibrate your input offset first — see timing tips.
Accuracy
Accuracy is the share of the maximum you earned. Each note is worth up to 3 points:
| Judgement | Accuracy points | Score points | Keeps combo? |
|---|---|---|---|
| Perfect | 3 | 300 | Yes |
| Good | 2 | 100 | Yes |
| Bad | 1 | 50 | Yes |
| Miss | 0 | 0 | No — combo resets |
Accuracy = (3 × Perfect + 2 × Good + 1 × Bad) ÷ (3 × notes). A run of 200 notes with 190 Perfect, 8 Good and 2 Miss gives (570 + 16) ÷ 600 = 97.7%.
Letter ranks D to SS
| Rank | Accuracy |
|---|---|
| SS | 100% — every note Perfect |
| S | 95% or more |
| A | 90% or more |
| B | 80% or more |
| C | 70% or more |
| D | below 70% |
The run in the example above, at 97.7%, is an S. Your profile keeps count of how many of each rank you have collected.
Score and combo
Score is separate from accuracy. Each hit adds its score points multiplied by your current combo plus one, so long unbroken streaks are worth far more than scattered Perfects. That is why two players with the same accuracy can have very different scores: the one whose misses came early in the song kept a longer combo for longer.
pp — performance points
pp measures how impressive a play was, not how much you have played. A play earns pp on official catalogue songs and on RANKED community maps. The formula for one play is:
pp = max combo × difficulty factor × accuracy ÷ 100
The difficulty factor is 1 for Easy, 2 for Normal, 3 for Hard, 4 for Expert and 5 for Expert+. Song length and tempo are not part of the formula — a longer song simply gives you room for a bigger combo.
Example: a max combo of 600 on Expert at 98% accuracy gives 600 × 4 × 0.98 ÷ 100 = 23.5 pp. The same run on Expert+ would be worth 29.4 pp.
Your total pp is weighted
Your profile total is not a plain sum. Your best plays are sorted from highest pp to lowest; the best counts in full, the second at 95%, the third at 95% × 95%, and so on. A new play only raises your total if it is better than plays already near the top of the list. Grinding easy songs barely moves the number; one great play on a hard map moves it a lot. Your total decides your place on the world and country ladders, shown as World # and Country # on your profile.
Mods change score and pp
Mods multiply score and pp, and several mods stack by multiplying:
| Mod | What it does | pp |
|---|---|---|
| 2 lanes | Easier layout | ×0.80 |
| 3 lanes | Default | ×1.00 |
| 4 lanes | Harder layout | ×1.02 |
| Hard Rock | Notes fall faster | ×1.06 |
| Hidden | Notes fade out near the line | ×1.06 |
| Double Time | Song plays 1.12× faster | ×1.12 |
| No Fail | You cannot fail | ×0.50 |
For example, Hard Rock with Double Time is 1.06 × 1.12 ≈ ×1.19.
How a community map becomes RANKED
Any player can turn a song into a map and publish it. Players who enjoy a map give it a ♥. When a map reaches 100 ♥ it becomes RANKED automatically: it shows up first in search, plays on it count for the world ladder, and it awards pp exactly like a licensed song.
How to climb faster
- Push accuracy on songs you can already full combo — accuracy and combo multiply each other.
- Move up a difficulty once you are getting an A consistently; Expert+ is worth 25% more than Expert for the same run.
- Only use No Fail for practice — it halves your pp.
- Check the World, Country and Friends tabs on each song to find boards where you can realistically take first place.