[1] He won the gold medal in the men's 60 kg event at the 2024 World Judo Championships held in Abu Dhabi, United Arab Emirates.

A year later, he managed to win the first place in the 60 kg weight category at the European Cup (youth) held in Prague.

At the tournament, Sardalashvili defeated Alejandro Prieto Simancas (Spain), Ricardo Pires (Portugal), Florian Boecker (Germany) and Luis Barroso Lopez (Spain) with ippons, and in the final he managed to defeat Japan's Keiji Tsujioka with waza-ari.

After losing to French Maxim Merlin in the quarterfinals with waza-ari, he defeated Turkmen Hukaberdi Yumaev in the repechage, giving him a ippon.

He won one of the bronze medals in the men's 60 kg event at the 2023 World Judo Championships held in Doha, Qatar.