- CoachAlina Mayer-Virtanen, Oleksandr Tumanovskyi, Alisa Romanenko
- Former CoachDmitriy Shkidchenko, Oleksandr Kovtoniuk
- ChoreographerEkaterina Ivleva Guarise
- Practice low seasonKyiv, Peurunka/FIN
- Practice high seasonKyiv, Peurunka/FIN
- bio
Marsak has relocated to Finland due to the war in Ukraine. He splits his training time between Ukraine and Finland.
Music Short Program as of season 2025/2026
Fall On Me by Andrea Bocelli, Matteo Bocelli
Music Free Skating / Free Dance as of season 2025/2026
I’m Tired (Long Version) by Labrinth, Zendaya
I’m Tired (ft. Zendaya) Bonus Track by Labrinth, Zendaya
The Feels by Labrinth, Zendaya
I’m Tired (ft. Zendaya) Bonus Track by Labrinth, Zendaya
The Feels by Labrinth, Zendaya
skaters bests
| Personal Best Total Score | ISU European Championships 2026 | 17 Jan 2026 | 229.25 |
| Personal Best Score Short Program | Olympic Winter Games 2026 Figure Skating | 10 Feb 2026 | 86.89 |
| Personal Best Score Free Skating | ISU European Championships 2026 | 17 Jan 2026 | 152.33 |
| Season Best Total Score | ISU European Championships 2026 | 17 Jan 2026 | 229.25 |
| Season Best Score Short Program | Olympic Winter Games 2026 Figure Skating | 10 Feb 2026 | 86.89 |
| Season Best Score Free Skating | ISU European Championships 2026 | 17 Jan 2026 | 152.33 |
