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Rosanne de Boer (NLD)


My name is Rosanne de Boer (1991) and living inZoeterwoude. Former competitive swimmer and switched to triathlon since 2015. I lost swimming in the fun, but in combination with cycling and walking, I got it back!

End of August 2015 I did my first sprint triathlon in Ouderkerk aan de Amstel and I picked equal profits.

Rosanne de Boer Ironman World Championship

After two seasons (2016 and 2017) in the 1e and 2e division team competition it was time for a longer work. Starting with a half triathlon.

May 2017 I did my first half triathlon in Nieuwkoop and the following year was followed by three more. That was the NK in Nieuwkoop (and I improved my pr 30 min relative to 2017), my first Ironman 70.3 in Edinburg (I was twoe and qualification for the World Championship Ironman 70.3 in 2019 in Nice) and Challenge Almere (3e in age-group).

It tasted more for 2019. I planned my first Ironman (Cork) and in the run-up to then I did some races in preparation. During the race I was in Cork 2e in my age-group and qualify me for Ironman World Championships in Hawaii in 2019!

The 2020 schedule is still:

  • Eredivisie matches TTW Weesp
  • NK Half triathlon in Nieuwkoop
  • Brouwers
  • Ironman Emilia Romana

Besides training (or rather next to my work, train IKj), I work at Lifeguard jobs as a HR assistant and project manager. Lifeguard helps organizations are vital to performance and as sustainably better. I am very happy to work for this wonderful organization.

On to many beautiful (sustainable) triathlon years and I am very happy with the support of World Sport Athlete hereby.

If this is you want to follow me can Instagram



1e - Ouderkerk (Sprint)


3e - Final team competition South 2e division (Triathlon Club Alphen)


1e - Nieuwkoop swim run (1km swim, 10km run)
7e - NK Nieuwkoop (half)
3e - Ter Aar (Quarter)
2e - Ironman 70.3 Edinburg (agegroup 25-29) + qualifying Ironman 70.3 World Nice 2019
3e - Challenge Almere (agegroup 25-29) (half)


1e - IJsselmuiden triathlon (sprinting)
2e - Breukelen (Quarter)
4e - Leuven, Belgium (Half)
2e - Ironman Cork (agegroup 25-29) + World Cup qualifying Ironman World Championship 2019


1e- IJsselmuiden triathlon (sprinting)
2e- Breukelen (Quarter)
4e- Leuven, Belgium (Half)
2e- Ironman Cork (agegroup 25-29) + World Cup qualifying Ironman World Championship 2019
Finisher Ironman World Championship 70.3 Nice
Hawaii Ironman World Championship finisher

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