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How it all started

The COTACOL is a belgian reference book about cycling uphill, made by Daniel Gobert and Jean-Pierre Legros in 1989. In it are descriptions of the thousand toughest climbs for cyclists.

Each climb is described by several facts: name, a short description, height, grade, length, what state the road surface is in, average climbing time for an amateur or a professional road cyclist.

The combined authors measured 1.869.800 km, rode up a height of 112.396 meters and measured nearly 30.000 data points to compose this book. Each hill has a so-called COTACOL score. This score is determined using several parameters: grade, length, road surface. A higher score means a tougher climb.

More than 30 years later, some cycling & tech enthousiasts virtually got together and built apps, web sites and integrated with Strava, so that the modern cyclist can now plan rides to conquer as much Cotacols as possible and automatically flag them when integrating with Strava.

Migration status

Users have been migrated to the new runtime. This should solve previous synchronization problems.

  • Badges still require to be migrated and contains some flaws. They will be recalculated after that migration.

Combined achievements

  5415 registered users
  have collected 45.729.141 Cotacol points
  • Guy did Les Grands Sarts today
  • Sam did Toverberg today
  • Jack did Promenade du Val d'Argent today
  • Tom did Kuiperenberg today
  • Matthieu did Rue de La Sèche today
  • Dylan did Wijndries yesterday
  • Stijn did Trassersweg yesterday
  • Arnaud did Côte d'Avister, Côte de la Redoute and Côte du Hornay yesterday
  • François did Fonds de Lustin yesterday
  • Steven did Wijndries, Chartreuzenberg, Roeselberg and 1 more yesterday
  • Egon did Congoberg yesterday
  • Michiel did Fortuinberg/Kanarieberg and Berendries yesterday
  • Pol did Smeysberg yesterday
  • Jonathan did Smeysberg and Côte du Lac de Genval yesterday
  • Jari did Holstraat and Achterberg yesterday
  • Alessandro did Felix Sohiestraat/Solheide and Speelberg yesterday
  • Kristof did Cote de Sarolay, Rue de La Sèche and Rue Tesny yesterday
  • Stijn did Côte de Ferrières yesterday
  • Luc did Congoberg yesterday
  • Nick did Bruine Put yesterday


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