Sarissa de vries triathlon coaching

Are you enthusiastic about triathlon and looking for someone to help you achieve your goals? Then you have come to the right place.

Besides her activities as a professional triathlete, Sarissa enjoys to coach a limited number of triathletes ranging from beginner to semi-pro.

She is an experienced swimming instructor and gives private swimming lessons to a wide variety of triathletes. 

Sarissa is part of Optrimize, a triathlon coaching business that she runs together with her boyfriend and coach Maarten Strijbosch.



Bachelor in Health Sciences with a specialization in Biology and Health at Maastricht University

Master in Human Movement Sciences at Maastricht University

NTB Triathlon Trainer Level 3

Certified Fitness trainer A

Coaching Experience

In her 7 years as a private triathlon coach and swimming instructor, Sarissa has helped a wide variety of athletes to reach their goals

Head coach of Triathlon Club Maastricht for 3 years

Fitness instructor at the Maastricht University gym for 2 years

Athletic experience

A triathlete for more than 20 years and a professional athlete since the age of 18.

She placed second at the 2012 U23 World Championships Olympic Distance

Second at IRONMAN Maastricht 2015

World Champion ITU Long Distance 2021 in a Dutch National Record (08:32:04)

Coaching Options

Sarissa helps athletes to achieve their goals in triathlon, swimming, biking or running and gives private swimming lessons

Sarissa takes on a limited number of athletes each year so that she can ensure that each athlete gets the attention he or she needs

Private swimming lessons

Sarissa has been a competitive swimmer since the age of 11 and has helped hundreds of triathletes to improve their swim. If you feel that you can use some help, don’t hesitate to contact Sarissa below

Triathlon coaching

Sarissa coaches on a personal level, she realizes that every individual is unique and has different needs. She takes your working and family situation into account and there is plenty of room for personal contact


Sarissa has joined forces with her boyfriend and coach Maarten Strijbosch and is part of Optrimize triathlon coaching. Please visit for more information about Sarissa’s triathlon coaching

Sarissa during Ironman Maastricht 2016

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