Lech managed to stay in the middle of the table and their best result was fourth place in 1990, which allowed him to play in the 1999-00 UEFA Cup, where they eliminated Liepājas Metalurgs in the qualifying round and were defeated by IFK Göteborg in first round. However, just a few months later, in 2000, Lech was relegated to the second division after 28 years of presence in the top flight. Lech's first season in the second division was a disaster, as they were very close to falling to the third division.