Vlad was in fact on his way to a public swimming pool at a local sports center when he walked into the wrong door and right into a class being taught by Andrey Chadin.

Two years later, on March 6, 2016, Vlad defeated Serbian fighter Nikola Cimesa by unanimous decision, in a 5-round fight, for the WKU 71 kg European title.

Later that year, Vlad added W5's coveted 71 kg European title to his waist, when he defeated Turkey's Erkan Varol by TKO in round 3.

On June 17, Vlad defeated France's Bryton Mabel by unanimous decision in 5 rds to become the MTA 71 kg European champion.

In his debut fight, on June 22, 2019, Tuinov lost by Split Decision to Michael Palandre at Glory 66 in Paris.

From October 19–27 Vlad fought in the WAKO Senior World Championships where he won gold against Nikola Todorovic, who was the 2019 Combat Games winner.

Tuinov made his bare-knuckle boxing debut against Makhmud Musalov, also known as "Chess Player" at Top Dog FC 9 on June 25, 2021.