At the 2012 Summer Olympics, he competed in the Men's 100 metre freestyle, finishing in 31st place (50.08) overall in the heats, failing to qualify for the semifinals.

[2] He also competed in the men's 100 metre freestyle, finishing in 20th place with a time of 48.68 seconds which was a new national record.

His mother, Kristina Golomeeva, died due to a medical error soon after giving birth to Kristian.

In 2018, Kristian married a fellow swimmer, Lindsay Morrow Gkolomeev, from his alma mater, the University of Alabama.

At 2011 FINA World Junior Swimming Championships – Lima (PER) Kristian Gkolomeev took 3rd place with time 22.80 (50m freestyle).