He wrestled mainly in the free style and, at a height of 1.80 metres, grew into an impressive heavyweight of around 100 kg as a senior.

In 1997 at the 1997 World Wrestling Championships held at the Yenisey Sports Hall in Krosnoyarsk, Russia, Ahmet Doğu defeated Australian Mushtaq Abdullah 10-2 in the first round, Cuban Wilfredo Morales 3-1 in the second round, passed the quarter-finals and defeated Latvian Jurijs Janovičs 1-0 in the semifinals to reach the final.

He lost to Russian Kuramagomed Kuramagomedov 5-0 in the final and won the silver medal.

[2] At the 2000 Olympic Games in Sydney, he lost Alireza Heidari from Iran in the first round by 6-1 points.

In his second match, he also surprisingly lost to Rolf Scherrer from Switzerland by 4-3 points and therefore finished in a sixteenth place.