As of 2022, the net worth of Marta Kostyuk is still under evaluation, but she has won prize money of 1.2 million dollars.

She started her career in 2015 when she competed in Orange Bowl in Florida. In 2016 she played in the first event in the IFT circuit.

In 2017, she qualified for the WTA and won the singles titles. The following year she made her debut at the Australian Open. 

As the pandemic was on a rise, she didn’t get to play much in 2020, but she still managed to beat Anastasija Sevastova in the US Open, only to lose to Naomi Osaka.