Sergei Kulbach
Sergei Kulbach was a Ukrainian pair skater. He won national titles with former partners Elizaveta Usmantseva and Natalja Zabijako. With Zabijako, he also competed at the 2011 World Championships, placing 16th.
Career
From 2008 to 2009, Kulbach competed with Anna Khnychenkova for Ukraine.In 2010, Kulbach teamed up with Natalja Zabijako to represent Estonia. After debuting at the 2010 Nebelhorn Trophy, the pair placed 13th at the 2011 European Championships and 16th at the 2011 World Championships. Zabijako injured her back as a result of a fall at the NRW Trophy in December 2011, preventing them from competing at the 2012 European Championships. On 15 February 2012, it was reported that Zabijako and Kulbach had parted ways and he had returned to Ukraine.
In 2012, Kulbach teamed up with Elizaveta Usmantseva to compete for Ukraine but their partnership was short-lived.
Death
Kulbach died on 23 May 2023 by fire accident in an apartment on Ivan Gundulića Street in Sisak, Croatia. On Wednesday, 24 May, the police officers of the Sisak-Moslavina Police Department, conducted an investigation, which determined that the fire was caused by the burning of the bed with the embers of a cigarette or a cigarette butt.Programs
With Zabijako
| Season | Short program | Free skating |
| 2011–2012 | ||
| 2010–2011 |
|