His footballing career started when Raj Pracha Thailand F.C., a club based in Bangkok. When he moved to Hertha BSC in 1979, he was the first Thais in the German Bundesliga. Overall, he came at Hertha BSC only 33 league appearances in three years and also increased with the club in the season 1979-80 in the second Bundesliga from. After moving to 1. FC Saarbrücken, it was better for him and he came at least 53 league appearances in two years, scoring seven goals. Greatest success in this period was the title in the Oberliga West in 1982-83 and the associated rise in the second Bundesliga. After his time in Saarbrücken, he first went back to Thailand to take longer than subsequently station in Japan. He went first as a player for Matsushita FC, later Gamba Osaka.
In 1988 he became head coach there and it involved the Gamba Osaka a founding member of the J League was. 1996 back in Thailand, he took over the Bangkok Bank F.C. and led the club to two championships and in the AFC Champions League. In 1997 he was elected even then coach of the year. In 2004 he took over the Chonburi F.C. and led him out of the second Thai League in the first division and at No. 8 Angry to care about the Thai Football Association, which did not make it to professional structures, he returned to Thailand again and went back to Japan There he took Gainare Tottori, a club from the third-highest division, with the task to lead the club, the J League.In the end of the 2013 Thai Premier League Witthaya resigned from his position.