Top 29 Triathlons in Japan
This curated ranking covers the 29 largest triathlons in Japan, ordered by estimated audience size from Rascasse's anonymized search-behavior signals. Escape from Alcatraz (triathlon), Ironman Heavymetalweight Championship and World Triathlon lead the list with a combined estimated audience of 230,174 people. Across all 29 entries the average audience size is 14,273, and the largest, Escape from Alcatraz (triathlon), reaches around 87,403 people in Japan. Audience size is the estimated number of unique people in Japan who actively engage with each triathlon, 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 |  Escape from Alcatraz (triathlon) |
87,403 | 10.5% | Triathlon | Sports |
| 2 |  Ironman Heavymetalweight Championship |
85,343 | 11.5% | Triathlon | Sports |
| 3 |  World Triathlon |
57,428 | 9.8% | Triathlon | Sports |
| 4 |  USA Triathlon |
39,640 | 9.3% | Triathlon | Sports |
| 5 |  Craig (CROWIE) Alexander |
33,279 | 2.5% | Triathlon | Sports |
| 6 |  Ironman World Championship |
23,073 | 2.6% | Triathlon | Sports |
| 7 |  Ironman Triathlon |
21,644 | 0.7% | Triathlon | Sports |
| 8 |  Ironman 70.3 |
20,368 | 0.3% | Triathlon | Sports |
| 9 |  Mark Allen (triathlete) |
7,312 | 1.6% | Triathlon | Sports |
| 10 |  Dave Scott (triathlete) |
5,353 | 3.7% | Triathlon | Sports |
| 11 |  Jan Frodeno |
4,249 | 1.9% | Triathlon | Sports |
| 12 |  International Triathlon Union |
3,786 | 3.1% | Triathlon | Sports |
| 13 |  220 Triathlon Magazine |
2,265 | 10.2% | Triathlon | Sports |
| 14 |  XTERRA Triathlon |
2,177 | 0.4% | Triathlon | Sports |
| 15 |  London Triathlon |
1,431 | 0.7% | Triathlon | Sports |
| 16 |  ITU Long Distance Triathlon World Championships |
1,248 | 8.1% | Triathlon | Sports |
| 17 |  Challenge Roth |
920 | 0.2% | Triathlon | Sports |
| 18 |  Ironman Sweden |
744 | 0.9% | Triathlon | Sports |
| 19 |  Alistair Brownlee |
488 | 0.5% | Triathlon | Sports |
| 20 |  Supertri |
446 | 1.0% | Triathlon | Sports |
| 21 |  IRONMAN Austria |
382 | 0.4% | Triathlon | Sports |
| 22 |  Ironman Germany |
288 | 0.1% | Triathlon | Sports |
| 23 |  Andreas Raelert |
113 | 1.8% | Triathlon | Sports |
| 24 | British Triathlon Federation |
73 | 0.3% | Triathlon | Sports |
| 25 |  Chris McCormack (triathlete) |
61 | 0.1% | Triathlon | Sports |
| 26 |  Pete Jacobs (triathlete) |
56 | 0.9% | Triathlon | Sports |
| 27 |  Sarah Haskins (triathlete) |
50 | 0.2% | Triathlon | Sports |
| 28 |  Timothy O'Donnell (triathlete) |
42 | 0.1% | Triathlon | Sports |
| 29 |  Triathlon at the Summer Olympics |
0 | 0.0% | Triathlon | Sports |
Frequently asked questions
How is this Top 29 list compiled?
Rascasse aggregates anonymized search-behavior signals across Japan and ranks each triathlon 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 triathlon in Japan?
Escape from Alcatraz (triathlon) currently leads with an estimated audience of 87,403 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.