[1] He is the current holder of the Greek national record.

He won the silver medal at the 2019 and 2021 European Athletics U23 Championships, bronze medal at the 2024 Summer Olympics and placed fourth at the 2020 Summer Olympics.

Since October 2021, Karalis has been a member of the athletics department of Olympiacos CFP.

[2] He is the son of a Greek father from Pyrgos, and a Ugandan mother.

This biographical article relating to Greek athletics is a stub.