VivaChek Star Athletes
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Marloes Oldenburg - Olympic gold medalist and 2023 World Champion in women's rowing
Name: Marloes Oldenburg

Marloes is an Olympic gold medalist and 2023 World Champion in women’s rowing (coxless four), this accomplished athlete has a remarkable journey. In 2022, after earning two silver medals at the World Championships, she suffered a serious neck injury but recovered to win World Championship gold just eight months later. She is now the Head Coach of the Dutch Regional Talent Center (RTC) in Northern Netherlands, mentoring the women’s rowing program.

Learn more about Marloes Oldenburg
Joakim Lindberg - Professional Swedish canoeist, 2022 ICF Canoe Sprint World Champion
Name: Joakim Lindberg

Joakim is a professional Swedish canoeist born in 1993. He has earned an impressive seven World Cup medals and won gold at the 2022 ICF Canoe Sprint World Championships in the K-1 5000 meters. In 2024, he added to his achievements with a bronze in the 5000m and a silver in the K-2 1000m.

Julia Jaguścik - Polish middle-distance runner specializing in 800m and 1500m
Name: Julia Jaguścik

Julia Jaguścik is a Polish middle-distance runner specializing in the 800m and 1500m. Born in 2003, She is currently ranked within the top 200 globally for her events.

Stranhinja Trakic - Professional triathlon athlete, Challenge Gallipoli winner
Name: Stranhinja Trakic

A pro-thiathlon athlete, Stranhinja is the winner of Challenge Gallipoli and won the second place of IRONMAN 70.3 Gdynia. He has multiple national champions and is qualified for 70.3 World Championship.

Kamil Kasperczak - Modern pentathlete, Olympian from Paris 2024
Name: Kamil Kasperczak

I have been training modern pentathlon for 17 years. I am an Olympian from Paris 2024. In 2018, I won a bronze medal at the Youth Olympic Games. My goal is to compete at the Olympic Games in Los Angeles 2028 and in 2032.

Jonatan Orozco - Elite Master track athlete specializing in short-distance sprints
Name: Jonatan Orozco

An elite Master track athlete with 3 international and 21 national medals, I specialize in short-distance sprints. Notable achievements include World Championship Silver (2018) and dual European medals (2023). A consistent podium finisher, I recently secured Gold in the 4×200m at the 2025 National Short Track Championships.

Rick Ottema - Dutch professional road and gravel cyclist, 2025 Gravel World Championships 8th place
Name: Rick Ottema

A Dutch professional road and gravel cyclist born in 1992, Rick Ottema specializes in "tough races." Ranking 8th at the 2025 Gravel World Championships, Rick masters the grueling demands of elite competition. He understands that conquering lactate is the key to peak performance and recovery on the global stage.

Riccardo Giacomel - Italian biathlete, specialist in precision and endurance
Name: Riccardo Giacomel

Italian biathlete Riccardo Giacomel (b. 2007) is a specialist in precision and endurance. A podium finisher at the FESA Cup and Italian Championships, Riccardo excels in grueling individual races. For this young elite athlete, mastering lactic acid recovery is vital to maintaining a steady hand during standing shooting under extreme fatigue.

Roberto Pusinelli - Italian sports scientist and CEO of Undertraining SAGL
Name: Roberto Pusinelli

Dr. Roberto Pusinelli is an Italian sports scientist, fitness expert, and CEO of Undertraining SAGL, with extensive experience in coaching, nutrition, and athletic performance. He has worked with elite athletes, achieving notable results in both national and international competitions.

Tomislav Novosel - Croatian long-distance runner, 10km specialist
Name: Tomislav Novosel

Tomislav is a Croatian athlete specializing in long distance, primarily competing in the 10km event. Born in 1998. Tomislav has represented Croatia in international events like the Youth European Championship (2016) and European Cross-Country Championships. He holds four Croatian national records in the distance medley (indoor and outdoor), the 5,000m indoor, and the 10km road race.

Piotr Ławicki - Professional Polish triathlete, 2024 National Half Ironman Champion
Name: Piotr Ławicki

Piotr is a professional Polish triathlete born in 1995. He started triathlon training at age 10 and now focuses on long-distance Ironman races. His achievements include winning the 2023 National Duathlon Championship, becoming the 2024 National Half Ironman Distance Champion, and securing 6th place at the 2024 Challenge Almere.

Patryk Grzegorzewicz - Polish sprinter specializing in 400m events
Name: Patryk Grzegorzewicz

Patryk is a talented Polish sprinter specializing in the 400m event. As a young athlete, he has shown impressive progress, competing in various national and international competitions. Patryk is known for his speed and resilience on the track, making him a promising athlete in the field of sprinting. 

Marloes Oldenburg - Olympic gold medalist and 2023 World Champion in women's rowing

Marloes is an Olympic gold medalist and 2023 World Champion in women’s rowing (coxless four), this accomplished athlete has a remarkable journey. In 2022, after earning two silver medals at the World Championships, she suffered a serious neck injury but recovered to win World Championship gold just eight months later. She is now the Head Coach of the Dutch Regional Talent Center (RTC) in Northern Netherlands, mentoring the women’s rowing program.

Joakim Lindberg - Professional Swedish canoeist, 2022 ICF Canoe Sprint World Champion

Joakim is a professional Swedish canoeist born in 1993. He has earned an impressive seven World Cup medals and won gold at the 2022 ICF Canoe Sprint World Championships in the K-1 5000 meters. In 2024, he added to his achievements with a bronze in the 5000m and a silver in the K-2 1000m.

Julia Jaguścik - Polish middle-distance runner specializing in 800m and 1500m

Julia Jaguścik is a Polish middle-distance runner specializing in the 800m and 1500m. Born in 2003, She is currently ranked within the top 200 globally for her events.

Stranhinja Trakic - Professional triathlon athlete, Challenge Gallipoli winner

A pro-thiathlon athlete, Stranhinja is the winner of Challenge Gallipoli and won the second place of IRONMAN 70.3 Gdynia. He has multiple national champions and is qualified for 70.3 World Championship.

Kamil Kasperczak - Modern pentathlete, Olympian from Paris 2024

I have been training modern pentathlon for 17 years. I am an Olympian from Paris 2024. In 2018, I won a bronze medal at the Youth Olympic Games. My goal is to compete at the Olympic Games in Los Angeles 2028 and in 2032.

Jonatan Orozco - Elite Master track athlete specializing in short-distance sprints

An elite Master track athlete with 3 international and 21 national medals, I specialize in short-distance sprints. Notable achievements include World Championship Silver (2018) and dual European medals (2023). A consistent podium finisher, I recently secured Gold in the 4×200m at the 2025 National Short Track Championships.

Rick Ottema - Dutch professional road and gravel cyclist, 2025 Gravel World Championships 8th place

A Dutch professional road and gravel cyclist born in 1992, Rick Ottema specializes in "tough races." Ranking 8th at the 2025 Gravel World Championships, Rick masters the grueling demands of elite competition. He understands that conquering lactate is the key to peak performance and recovery on the global stage.

Riccardo Giacomel - Italian biathlete, specialist in precision and endurance

Italian biathlete Riccardo Giacomel (b. 2007) is a specialist in precision and endurance. A podium finisher at the FESA Cup and Italian Championships, Riccardo excels in grueling individual races. For this young elite athlete, mastering lactate recovery is vital to maintaining a steady hand during standing shooting under extreme fatigue.

Dr. Roberto Pusinelli - Italian sports scientist and CEO of Undertraining SAGL with VivaChek awards

Dr. Roberto Pusinelli is an Italian sports scientist, fitness expert, and CEO of Undertraining SAGL, with extensive experience in coaching, nutrition, and athletic performance. He has worked with elite athletes, achieving notable results in both national and international competitions.

Tomislav Novosel - Croatian long-distance runner, 10km specialist

Tomislav is a Croatian athlete specializing in long distance, primarily competing in the 10km event. Born in 1998. Tomislav has represented Croatia in international events like the Youth European Championship (2016) and European Cross-Country Championships. He holds four Croatian national records in the distance medley (indoor and outdoor), the 5,000m indoor, and the 10km road race.

Piotr Ławicki - Professional Polish triathlete, 2024 National Half Ironman Champion

Piotr is a professional Polish triathlete born in 1995. He started triathlon training at age 10 and now focuses on long-distance Ironman races. His achievements include winning the 2023 National Duathlon Championship, becoming the 2024 National Half Ironman Distance Champion, and securing 6th place at the 2024 Challenge Almere.

Patryk Grzegorzewicz - Polish sprinter specializing in 400m events

Patryk is a talented Polish sprinter specializing in the 400m event. As a young athlete, he has shown impressive progress, competing in various national and international competitions. Patryk is known for his speed and resilience on the track, making him a promising athlete in the field of sprinting.