She has a career-high WTA doubles ranking of world No.

Her older sister Nadiia, who is also a professional tennis player, is her regular doubles partner.

Maryna made her WTA Tour main-draw debut at the 2024 Hong Kong Tennis Open, partnering with older sister Nadiia Kolb in doubles.

They defeated Japanese duo Aoi Ito and Kyōka Okamura in the first round.

[2]In the quarter-finals, they were defeated by Norwegian Ulrikke Eikeri and Japanese Makoto Ninomiya.