After the Olympic Games, Wessig tried his luck as a decathlete (best performance: 8015 points, 23 May 1983 in Neubrandenburg; the equivalent of 7974 points according to the scale introduced in 1985). He turned back to the high jump following frequent injuries. In 1985, he came in second at the World Cup. In 1986, he reached seventh place at the European Championships. He became East German champion again 1988 and 1989.