The club finished 17th in the 2004–05 second division season but was relegated as it did not receive the professional football license.

Following this, the club changed its name again to K. Patro Eisden Maasmechelen starting the 2005–06 season in the fourth division.

On 20 May 2023, Patro Eisden secured the title of Belgian National Division 1 2022–23 after defeating Dessel Sport 3–0 on Final Day in Matchweek 38 and was thus promoted to Challenger Pro League from 2023 to 2024.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.