Top 47 Bettings in Japan
This curated ranking covers the 47 largest bettings in Japan, ordered by estimated audience size from Rascasse's anonymized search-behavior signals. Polymarket, Betfair and William Hill (bookmaker) lead the list with a combined estimated audience of 771,157 people. Across all 47 entries the average audience size is 28,611, and the largest, Polymarket, reaches around 476,374 people in Japan. Audience size is the estimated number of unique people in Japan who actively engage with each betting, derived from search demand signals. Rankings reflect search-behavior signals collected across Japan and are refreshed weekly.
Ranking
| Rank | Name | Audience size | Country share | Subtype | Category |
|---|---|---|---|---|---|
| 1 |  Polymarket |
476,374 | 3.9% | Betting | Business & Career |
| 2 |  Betfair |
158,190 | 0.6% | Betting | Games |
| 3 |  William Hill (bookmaker) |
136,593 | 0.5% | Betting | Games |
| 4 |  Bookmaker |
126,689 | 5.1% | Betting | Games |
| 5 |  Bet365 |
110,857 | 0.4% | Betting | Games |
| 6 |  Betway |
78,784 | 0.1% | Betting | Games |
| 7 |  Fun88 |
46,347 | 0.5% | Betting | Games |
| 8 |  Tipico |
40,692 | 0.4% | Betting | Games |
| 9 |  Bwin |
28,958 | 0.1% | Betting | Games |
| 10 |  SBOTOP |
27,378 | 3.5% | Betting | Games |
| 11 |  888sport |
19,526 | 0.8% | Betting | Games |
| 12 |  Betano |
17,902 | 0.0% | Betting | Games |
| 13 |  Pinnacle Sports |
14,903 | 4.4% | Betting | Games |
| 14 |  BetMGM |
13,010 | 0.1% | Betting | Games |
| 15 |  iddaa |
7,994 | 0.0% | Betting | Sports |
| 16 |  Betclic |
6,631 | 0.0% | Betting | Games |
| 17 |  LeoVegas |
5,247 | 0.1% | Betting | Games |
| 18 |  BetVictor |
4,195 | 0.1% | Betting | Games |
| 19 |  Sports Interaction |
3,587 | 0.3% | Betting | Games |
| 20 |  Boylesports |
2,929 | 0.0% | Betting | Games |
| 21 |  PlayNow |
2,785 | 0.1% | Betting | Games |
| 22 |  Tipsport |
2,138 | 0.0% | Betting | Games |
| 23 |  Veikkaus |
1,449 | 0.1% | Betting | Games |
| 24 |  Interwetten |
1,247 | 0.0% | Betting | Games |
| 25 |  Parions Sport |
1,022 | 0.0% | Betting | Sports |
| 26 |  Dota2Lounge |
1,000 | 1.6% | Betting | Games |
| 27 |  Equidia |
828 | 0.0% | Betting | Games |
| 28 |  Snai |
805 | 0.0% | Betting | Games |
| 29 |  Oddset |
677 | 0.0% | Betting | Games |
| 30 |  BET99 |
632 | 0.1% | Betting | Games |
| 31 |  Bet-at-home.com |
563 | 0.0% | Betting | Games |
| 32 |  Admiralbet |
538 | 0.0% | Betting | Games |
| 33 |  Goldbet |
501 | 0.0% | Betting | Games |
| 34 |  BET-10 |
410 | 0.0% | Betting | Games |
| 35 |  Eurobet |
406 | 0.0% | Betting | Games |
| 36 |  Genybet |
404 | 0.0% | Betting | Games |
| 37 |  Betcity |
372 | 0.0% | Betting | Games |
| 38 |  Betfirst |
351 | 0.0% | Betting | Games |
| 39 |  Neo.bet |
320 | 0.0% | Betting | Games |
| 40 |  Sportsbook |
316 | 0.0% | Betting | Games |
| 41 |  Betfred |
248 | 0.0% | Betting | Games |
| 42 |  TipWin |
235 | 0.0% | Betting | Games |
| 43 |  Ladbrokes Casino |
210 | 0.1% | Betting | Games |
| 44 |  TVG Network |
193 | 0.1% | Betting | Sports |
| 45 |  Paddy Power |
177 | 0.0% | Betting | Games |
| 46 |  Bilyoner.com |
127 | 0.2% | Betting | Games |
| 47 |  Admiral.at |
13 | 0.0% | Betting | Games |
Frequently asked questions
How is this Top 47 list compiled?
Rascasse aggregates anonymized search-behavior signals across Japan and ranks each betting 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 betting in Japan?
Polymarket currently leads with an estimated audience of 476,374 people in Japan.
Methodology
Audience sizes are estimated from anonymized search-behavior signals across Japan. Lists below 5 entries are not published. See methodology for full details.