How to read this list
Rank
Position in the Top 45, sorted by audience size from largest to smallest. Updated weekly.
Audience size
Estimated number of unique people in Japan who actively engage with this audience, derived from anonymized search-behavior signals.
Country share
Share of the global audience that is active in Japan. A higher value means the audience is more locally concentrated here.
Avg age
Average age in years across the people who engage with this audience in Japan, derived from anonymized search-behavior signals. A dash means demographic data is not yet available.
Female share
Share of women among the people who engage with this audience in Japan. 50% is gender-balanced; values above mean female-skewed, below mean male-skewed.
Ranking
| Rank | Audience | Audience size | Country share | Avg age | Female share | Subtype |
|---|---|---|---|---|---|---|
| 1 |  michael phelps |
27k | 0.5% | 28.7 | 65.5% | Swimming |
| 2 |  Federer Roger |
23k | 1.1% | 21.3 | 18.8% | Swimming |
| 3 |  FINA World Aquatics Championships |
11k | 0.4% | 27.3 | 54.6% | Swimming |
| 4 |  Katie Ledecky |
11k | 0.7% | 31.7 | 64.2% | Swimming |
| 5 |  Léon Marchand |
10k | 0.5% | 42.1 | 41.7% | Swimming |
| 6 |  Adam Peaty |
10k | 0.4% | 34.2 | 41.5% | Swimming |
| 7 |  Caeleb Dressel |
7.9k | 1.0% | 42.1 | 41.7% | Swimming |
| 8 |  Michael Chang |
6k | 1.4% | 43.7 | 12.0% | Swimming |
| 9 |  Swimming at the Summer Olympics |
5.2k | 2.7% | 46.5 | 21.1% | Swimming |
| 10 |  Florent Manaudou |
4.9k | 0.3% | 25.1 | 61.2% | Swimming |
| 11 |  Laure Manaudou |
2.3k | 0.2% | 31.3 | 62.9% | Swimming |
| 12 |  Emma McKeon |
1.6k | 0.6% | 42.1 | 41.7% | Swimming |
| 13 |  Franziska van Almsick |
1.5k | 0.1% | 40.7 | 26.7% | Swimming |
| 14 |  Regan Smith |
1.3k | 1.1% | 33.8 | 42.1% | Swimming |
| 15 |  FINA World Swimming Championships (25 m) |
1.2k | 6.2% | 38.3 | 49.9% | Swimming |
| 16 |  Masters swimming |
990 | 0.5% | 35.2 | 61.4% | Swimming |
| 17 |  Elena Dementieva |
960 | 1.3% | 39.1 | 24.9% | Swimming |
| 18 |  Tímea Babos |
876 | 1.1% | 39.1 | 24.9% | Swimming |
| 19 |  Janet Lee |
645 | 1.0% | 35.1 | 54.9% | Swimming |
| 20 |  Florian Wellbrock |
599 | 0.3% | 42.2 | 41.7% | Swimming |
| 21 |  Leonie Beck |
537 | 0.7% | 42.0 | 41.9% | Swimming |
| 22 |  Anna Elendt |
472 | 0.2% | 42.2 | 41.7% | Swimming |
| 23 |  Jule Niemeier |
462 | 0.1% | 36.1 | 41.7% | Swimming |
| 24 |  Melvin Imoudu |
380 | 1.6% | 42.2 | 41.7% | Swimming |
| 25 |  Britta Steffen |
376 | 0.4% | 41.0 | 67.8% | Swimming |
Want the full picture for any of these audiences?
Open any profile to see psychographics, top regions, peer affinities and demographic splits — all derived from the same anonymized signals.
Frequently asked questions
How is this Top 45 list compiled?
Rascasse aggregates anonymized search-behavior signals across Japan and ranks each swimming by its estimated audience size. Only entries with at least 5 measured entities are listed.
How often is the list updated?
The ranking is refreshed weekly from the latest search-behavior data and re-published as a static page.
What is the largest swimming in Japan?
michael phelps currently leads with an estimated audience of 27k people in Japan.