On Sunday, April 30, 2023, Thessaloniki put on its sports gear and hosted the 17th International Marathon "Alexander the Great." In this significant athletic event of the city, the employees of KLEEMANN ran with "Smile," as their participation was made through the organization "The Smile of the Child." 

The 17th International Marathon “Alexander the Great” is a regular member of the AIMS World Marathon Federation and is under the auspices of the Municipality of Thessaloniki, the Region of Central Macedonia, the Greek National Committee for UNESCO, the Ministry of Interior (Macedonia – Thrace), the Ministry of Culture and Sports, the General Secretariat of Sports, the Ministry of Tourism, the Greek National Tourism Organization, the Ministry of National Defense and the Hellenic Olympic Committee. 

This year's marathon was a successful sports and social participation event with the 14,000 runners being a shining example of solidarity and the spirit of athleticism.