Spread Ratio Statistics

This page shows statistical results for Circle-count Ratios between difficulties, collected from 100 osu!taiko mapsets ranked in 2026.

Source data: Statistics.txt

Ratio is calculated as Circle count of the current difficulty / Circle count of the previous difficulty. Sliders and Spinners are not included in the note count.

Statistics for all samples

Comparison	Count	Min	Q1	Median	Q3	Max	Mean	Standard deviation	Quartile deviation
All	383	0.92	1.24	1.34	1.53	2.58	1.41	0.26	0.14
Below Kantan → Kantan	1	1.78	1.78	1.78	1.78	1.78	1.78	0.00	0.00
Kantan → Futsuu	79	1.51	1.71	1.83	1.92	2.58	1.84	0.18	0.10
Futsuu → Muzukashii	91	1.16	1.34	1.40	1.45	1.76	1.41	0.10	0.05
Muzukashii → Oni	98	1.08	1.24	1.29	1.34	1.61	1.30	0.09	0.05
Oni → Inner Oni+	80	0.92	1.18	1.24	1.30	1.63	1.25	0.11	0.06
Inner Oni+ → Inner Oni+	34	0.97	1.10	1.12	1.19	1.56	1.15	0.11	0.04

Comparisons including guest difficulties

Comparison	Count	Min	Q1	Median	Q3	Max	Mean	Standard deviation	Quartile deviation
All	143	0.92	1.20	1.32	1.48	2.58	1.39	0.28	0.14
Below Kantan → Kantan	1	1.78	1.78	1.78	1.78	1.78	1.78	0.00	0.00
Kantan → Futsuu	25	1.51	1.67	1.86	1.98	2.58	1.87	0.24	0.16
Futsuu → Muzukashii	29	1.16	1.33	1.39	1.47	1.63	1.40	0.11	0.07
Muzukashii → Oni	38	1.08	1.23	1.30	1.35	1.61	1.30	0.10	0.06
Oni → Inner Oni+	34	0.92	1.15	1.21	1.26	1.50	1.21	0.11	0.05
Inner Oni+ → Inner Oni+	16	0.97	1.05	1.12	1.19	1.56	1.15	0.14	0.07

Comparisons without guest difficulties

Comparison	Count	Min	Q1	Median	Q3	Max	Mean	Standard deviation	Quartile deviation
All	240	1.07	1.25	1.35	1.55	2.21	1.43	0.25	0.15
Kantan → Futsuu	54	1.55	1.73	1.83	1.90	2.21	1.82	0.15	0.08
Futsuu → Muzukashii	62	1.25	1.35	1.40	1.45	1.76	1.41	0.09	0.05
Muzukashii → Oni	60	1.17	1.24	1.28	1.33	1.55	1.30	0.08	0.05
Oni → Inner Oni+	46	1.07	1.18	1.25	1.33	1.63	1.27	0.11	0.07
Inner Oni+ → Inner Oni+	18	1.08	1.10	1.13	1.19	1.34	1.16	0.07	0.04

Observed trends

Kantan → Futsuu has a relatively high median Ratio of x1.83, indicating that lower difficulties tend to produce larger Ratios.
Futsuu → Muzukashii has a median of x1.40, while Muzukashii → Oni has a median of x1.29. The central Ratio value generally decreases as the difficulty level increases.
Oni → Inner Oni+ has a median of x1.24, while Inner Oni+ → Inner Oni+ has a median of x1.12. Smaller Ratios tend to appear more naturally in higher-difficulty spreads.
In comparisons including guest difficulties, Kantan → Futsuu shows a relatively large standard deviation, suggesting that mapper-specific design differences can strongly affect Ratio values.
Below Kantan → Kantan currently has too few samples, making it insufficient for determining reliable threshold values.

About threshold settings

The Warning / Error thresholds in Modding Helper are based on the statistical results shown on this page.

Warning: roughly based on Ratios that fall within the lower 5% / upper 5% of each difficulty-pair sample
Error: roughly based on Ratios that fall within the lower 1% / upper 1% of each difficulty-pair sample
Ratio below 1.00: treated as Error by default, because the higher difficulty has fewer Circle objects than the previous difficulty

The actual threshold values are not copied mechanically from the raw statistics. They are rounded to around two decimal places for readability and easier practical use.

Warning / Error results should not be interpreted as “invalid” or “unrankable”. They are only helper indicators for places that may deserve manual review.

Notes

These statistics are NOT official Ranking Criteria guidelines.
The Warning / Error thresholds are unofficial reference values used by Modding Helper, estimated from trends observed in ranked beatmaps.

The displayed values are intended only as supplementary information for observing note-count Ratio tendencies, and do not fully represent actual difficulty spread quality.