Crossref

1. The fastest nonprofessional age group IRONMAN triathletes in the world originate from Europe

- Beat Knechtle

- Elias Villiger

- Katja Weiss

- David Valero

- Thomas Rosemann

- Pantelis T. Nikolaidis

- Rodrigo Luiz Vancini

- Marilia Santos Andrade

- Mabliny Thuany

2. Europe has the fastest Ironman race courses and the fastest Ironman age group triathletes

- Beat Knechtle

- Mabliny Thuany

- David Valero

- Elias Villiger

- Pantelis T. Nikolaidis

- Ivan Cuk

- Thomas Rosemann

- Katja Weiss

3. The Role of Nationality in Ultra-Endurance Sports: The Paradigm of Cross-Country Skiing and Long-Distance Running

- Beat Knechtle

- Thomas Rosemann

- Pantelis Theo Nikolaidis