She competed at the 2014 European Junior Championships where she qualified to 3 apparatus finals placing 8th in hoop, ball and 4th in ribbon.

[3] On May 5–7, Kelaiditi competed at the 2017 Sofia World Cup finishing 8th in the all-around ahead of Anastasiya Serdyukova, she qualified in 1 apparatus final in clubs finishing in 8th place.

On May 19–21, Kelaiditi represented the individual senior for Greece at the 2017 European Championships.

Kelaiditi competed at the quadrennial held 2017 World Games in Wrocław, Poland from July 20–30.

On August 30 - September 3, at the 2017 World Championships in Pesaro, Italy; Kelaiditi finished 20th in the all-around finals behind Ukraine's Olena Diachenko.