The answer isn’t the USA, the UK or Germany. Switzerland loves triathlon more than any other country, but the answer depends on how you measure ‘love’, and three other countries win on other measures:
- New Zealand wins on Olympic medals per head and on the share of its population that races.
- Great Britain wins on Olympic medals and on age-group medals at the European and world levels.
- The USA wins on raw numbers, with the most triathletes and the most Ironman world titles.
The scorecard, population-adjusted.
A fair test of how much a country loves triathlon has to allow for its size. The table ranks seven leading nations on five per-head measures, where 1 is best, and adds up the ranks. The lowest total wins.
| Country | Estimated triathletes | Registered triathletes | Clubs | Olympic medals | Ironman titles | Rank total |
|---|---|---|---|---|---|---|
| Switzerland | 4 | 1 | 3 | 2 | 1 | 11 |
| Australia | 2 | 5 | 4 | 3 | 2 | 16 |
| New Zealand | 1 | 6 | 6 | 1 | 3 | 17 |
| Germany | 3 | 4 | 1 | 6 | 4 | 18 |
| France | 7 | 2 | 2 | 5 | 7 | 23 |
| Great Britain | 5 | 7 | 5 | 4 | 6 | 27 |
| USA | 6 | 3 | 7 | 7 | 5 | 28 |
Switzerland finishes first on two measures and no lower than fourth on any. Britain and the USA lead most raw totals, but their large populations push them to the bottom on the per-head measures.
Populations are World Bank figures for 2024.
How many people race
World Triathlon’s 2025 National Federation Survey asks each federation for its number of clubs, registered athletes and estimated total triathletes. The federations report these figures themselves, and they don’t all count the same thing. France, Spain and Switzerland give estimates close to their licence numbers, while New Zealand, Australia, Britain and Germany give much broader estimates of everyone who races.
| Country | Estimated triathletes | Share of population | Registered athletes | Per 1,000 people | Clubs | Clubs per million |
|---|---|---|---|---|---|---|
| New Zealand | 130,000 | 2.46% | 2,568 | 0.5 | 27 | 5.1 |
| Australia | 156,000 | 0.57% | 16,709 | 0.6 | 222 | 8.2 |
| Germany | 250,000 | 0.30% | 63,457 | 0.8 | 1,530 | 18.3 |
| Switzerland | 16,000 | 0.18% | 15,277 | 1.7 | 80 | 8.9 |
| Great Britain | 120,000 | 0.17% | 28,586* | 0.4 | 420 | 6.1 |
| USA | 500,000 | 0.15% | 303,000* | 0.9 | 773 | 2.3 |
| France | 68,872 | 0.10% | 70,733 | 1.0 | 1,011 | 14.7 |
| Spain | 23,831 | 0.05% | 19,173 | 0.4 | 814 | 16.7 |
*Membership figures published by British Triathlon and USA Triathlon. The survey reports 3,037 in Britain and 233,886 in the USA.
New Zealand’s estimate puts one person in forty in the sport, but its registered count is 50 times smaller. Britain’s estimate of 120,000 matches the Triathlon Industry Alliance’s 2025 count of active racing triathletes. Germany, Spain and France organise the sport through clubs, with 15 to 18 clubs per million people. The USA has by far the most registered athletes, with 303,000 active USA Triathlon members in 2025, but the fewest clubs per head.
The measure nobody has
The best test of a country’s love for triathlon is how many people have ever finished one, and no one publishes that number. Annual estimates, memberships and race starts all count different things, and they disagree widely. AusTriathlon estimates 156,000 Australian triathletes, but the government’s AusPlay survey found 36,000 Australians who took part in 2025.
Age-group racing
Europe
Britain has topped every European age-group season table published since 2023, with more than three times the medals of the next nation. Europe Triathlon ranks its tables by gold medals.
| Season | First | Second | Third |
|---|---|---|---|
| 2023 | Great Britain 289 (97 gold) | Italy 90 (38 gold) | Belgium 69 (27 gold) |
| 2025 | Great Britain 277 (96 gold) | Poland 58 (27 gold) | Spain 70 (21 gold) |
| 2026 Multisport, Banyoles | Great Britain 187 (66 gold) | France 81 (43 gold) | Spain 108 (34 gold) |
Hosting lifts a nation up the table. Italy and Belgium hosted championships in 2023 and finished second and third. Poland was tenth in 2023 with 8 medals, rose to second in 2025 when it hosted the duathlon championships in Rumia, and was tenth again at Banyoles in 2026 with 8. Spain won 108 medals at home in Banyoles, but Britain still won 187 there. Britain’s lead also comes down to numbers: nearly 1,700 British age-groupers raced at European championships in 2025.
World
The world championships are closer. The table covers the sprint, standard, aquabike, and relay world championships and excludes the host nation’s medals.
| Year and host | Great Britain | USA | Australia |
|---|---|---|---|
| 2023 Pontevedra, Spain | 55 (17 gold) | 58 (23 gold) | 4 |
| 2024 Torremolinos, Spain | 70 (20 gold) | 50 (16 gold) | 11 |
| 2025 Wollongong, Australia | 23 (10 gold) | 39 (9 gold) | host (141) |
| 2026 Pontevedra, Spain | 61 (25 gold) | 34 (8 gold) | 18 |
| Total, excluding host | 209 (72 gold) | 181 (56 gold) | 33 |
Britain wins over four years by 28 medals and 16 golds. The USA won two of the four championships, in Pontevedra and in Wollongong. Both teams won about 10 medals per 100 starters, so Britain’s lead comes from sending bigger teams: between 456 and 699 athletes at the three Spanish championships, against 400 to 500 for the USA. Three of the four championships were held in Spain, which made Britain’s short trip an advantage.
The multisport world championships (duathlon, aquathlon, cross and long distance) follow the same pattern. Britain won 145 medals, including 61 golds, in Ibiza in 2023. In Townsville in 2024, Australia won 257 at home, and USA Triathlon reported New Zealand second, ahead of the USA on 60 and Britain on 59. In Pontevedra in 2025, Spain won 170 at home, and Britain led the visiting nations with 138.
The Olympic medal table, all time
Triathlon has been on the Olympic programme since Sydney 2000. There have been seven men’s races, seven women’s races, and a mixed relay at Tokyo and Paris, for a total of 48 medals. Sixteen nations have won at least one.
| Country | Gold | Silver | Bronze | Total |
|---|---|---|---|---|
| Great Britain | 4 | 3 | 4 | 11 |
| Switzerland | 2 | 2 | 2 | 6 |
| New Zealand | 1 | 2 | 2 | 5 |
| Australia | 1 | 2 | 2 | 5 |
| USA | 1 | 2 | 2 | 5 |
| Germany | 2 | 1 | 0 | 3 |
| France | 1 | 0 | 2 | 3 |
| Canada | 1 | 1 | 0 | 2 |
| Norway, Bermuda, Austria | 1 each | 0 | 0 | 1 each |
| Spain, Portugal, Sweden | 0 | 1 each | 0 | 1 each |
| Czech Republic, South Africa | 0 | 0 | 1 each | 1 each |
All eleven British medals have come since London 2012, including Alex Yee’s gold in Paris and the mixed relay gold in Tokyo. Alistair Brownlee won the first and remains the only athlete with two individual Olympic titles. On a weighted count (3 points for gold, 2 for silver, 1 for bronze), Britain scores 22 to Switzerland’s 12, with New Zealand, Australia and the USA level on 9.
Per head, the order changes. These figures are medals per 10 million people:
- Bermuda: 155, from Flora Duffy’s gold in Tokyo and a population of 65,000
- New Zealand: 9.5
- Switzerland: 6.7
- Australia: 1.8
- Norway: 1.8
- Great Britain: 1.6
- France: 0.4
- Germany: 0.4
- USA: 0.15
Bermuda’s figure rests on one athlete, so the scorecard excludes it. New Zealand’s five medals come from three men: Hamish Carter, Bevan Docherty (twice), and Hayden Wilde (twice). Britain converts triathletes into Olympic medals more efficiently than any other country, with 9.2 medals per 100,000 estimated triathletes, against 3.8 for New Zealand, 3.2 for Australia and 1.0 for the USA.
Ironman
The USA has won 30 IRONMAN world titles, 20 for men and 10 for women. Taylor Knibb took the latest in Kona on 10 October 2026, the same day Vincent Luis won the men’s race for France. No American man has won since Tim DeBoom in 2002. Germany has 13 titles, and Germany and Australia have dominated the men’s race since 2004.
| Country | Titles | Per 10 million people |
|---|---|---|
| Switzerland | 11 | 12.2 |
| Australia | 11 (7 men, 4 women) | 4.0 |
| New Zealand | 2 | 3.8 |
| Germany | 13 | 1.6 |
| USA | 30 | 0.9 |
| Great Britain | 6 | 0.9 |
Switzerland’s eleven titles belong to two women, Natascha Badmann with six and Daniela Ryf with five. Zimbabwe’s seven all belong to Paula Newby-Fraser, and New Zealand’s two to Erin Baker.
Short-course world titles
Australia has the most short-course world championship results, with 50 podiums and 20 titles since 1989. Britain has 37 podiums and 18 titles, and the USA has 30 podiums and 8 titles. Australia won 44 of its 50 podiums before 2009, when the title was decided by a single race. Since the switch to a season-long series, Britain has been the strongest nation, with 22 of its 37 podiums.
Quick answers
Which country has won the most Olympic triathlon medals?
Great Britain has won 11 Olympic triathlon medals, including four golds, all since London 2012. Switzerland is second with six.
Which country has the most triathletes per head?
New Zealand reports the highest share, with an estimated 130,000 triathletes in a population of 5.3 million. Switzerland has the most registered triathletes per head, at 1.7 per 1,000 people.
Which country wins the most age-group triathlon medals?
Great Britain wins the most. It has topped every published European season table since 2023 and won 209 World Championship medals from 2023 to 2026, ahead of the USA with 181.
Which country has the most triathletes?
The USA has the most, with an estimated 500,000 triathletes and 303,000 active USA Triathlon members in 2025.
Which country has won the most Ironman world titles?
The USA has won 30 IRONMAN world titles, more than twice Germany’s 13. Taylor Knibb won the most recent, in Kona in October 2026.
Source and original research by: the5krunner and Slowtwitch
Last Updated on 26 October 2026 by tfk the5krunner
Small things I always use
- Garmin 90-degree charging adapter: Charges your Garmin from any USB-C cable. Essential when travelling. I use one.
- Body Glide: The blue anti-chafe stick swimmers and runners carry. I use it.
- Speedo earplugs: Fewer ear infections and no cold-water dizziness. I use them.
- Dryrobe Advance: My winter changing robe for open-water swims. I use one. A cheaper option is the AONYIYI changing robe.
- Maurten: Race fuel that stays easy on the stomach. I use them.
- Beet It Sport nitrate shots: Beetroot shots I take in the days before a race. I use them.
- Garmin charging puck: The quickest way to top up before a session. I use one.
- Injinji: Toe socks that stop rubbing, so you run more. I use them.
- Ultimate toe protectors: Stop black toenails on long runs. They work. I use them.
- Compressport R2 v2 calf sleeves: My calf sleeves of choice. I use them.
- Cellucor C4: My pre-workout before hard sessions.
- TPU tubes: Schwalbe Aerothan, Tubolito and Pirelli SmarTube. Light, tiny spares. I use all three.
- G8 insoles: Adjustable insoles that are good. I use them.
- Cycplus Cube: A 97g electric pump that gets a road tyre rideable in two minutes. I carry one. 5% off with code THE5KRUNNER.
Watches and sensors
- Polar H10: My daily driver for waking HRV.
- Polar Verity Sense: My backup arm-worn HR sensor.
- Nomad bedside charger: Charges my iPhone and Apple Watch overnight. I use it, and many of their bands.
- Train.Red: The best muscle oxygen sensor I’ve used.
- Tymewear: Accurate heart rate and reliable ventilatory zones. I use it to pace endurance rides over an hour.
- Garmin Forerunner 970: A pro-grade triathlon watch. I use this.
- Apple Watch Ultra 4: My daily smartwatch. No phone needed on rides.
- Garmin Fenix 9 Pro: I’ve just bought one.
On the bike
- Continental GP5000 for everyday riding, and Aero 111 on the front for special occasions.
- Helmets: Specialized S-Works Evade 3 for road riding, and Rudy Project Wing for TT-style races. I use both.
- Ravemen FR300: A front light that mounts under your Garmin or Wahoo. I use one.
- Wahoo TRACKR Radar: I use it on one bike and Varia on the other. They perform the same.
- Garmin Varia RTL515: Radar that warns you of cars from behind. I use this model.
- Wahoo ELEMNT Roam 3: The bike computer that’s easy to use. I use mine on most rides.
- Favero Assioma Pro RS2: Accurate power pedals that swap easily between bikes. I use this model.
Home and indoor training
- NPE Runn: Makes my basic treadmill smart, sending more accurate speed and distance to my watch and Zwift. I use it.
- Google Wifi: Keeps Zwift connected in my pain cave. I use it.
- Apple TV 4K: Zwift on the big screen. I use two.
- Google Nest Doorbell (wired, 2nd gen): My video doorbell, running in both Google Home and Apple Home. I use it.
Health, recovery and sleep
- FreeStyle Libre 3 Plus: Shows how my blood sugar responds to diet.
- hDrop: Measures my sweat loss in summer and indoors.
- Fourth Frontier Zone: Checks my heart under load in hard sessions.
- Oura Ring 5: My partner’s recovery tracker of choice.
- Eight Sleep: A cooling mattress cover my partner and I use nightly.
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tfk is the founder and author of the5krunner, an independent endurance sports technology publication. With 20 years of hands-on testing of GPS watches and wearables, and competing in triathlons at an international age-group level, tfk provides in-depth expert analysis of fitness technology for serious athletes and endurance sport competitors. See the gear tfk uses. ID
