It was the fifteenth edition of the tournament which was part of the 2018 ATP Challenger Tour .
The 2018 Open Harmonie mutuelle was a professional tennis tournament played on hard courts .
Open Harmonie mutuelle was the fifteenth Open Harmonie mutuelle of the tournament which was part of the 2018 ATP Challenger Tour .
The 2018 Open Harmonie mutuelle was a professional tennis tournament played on hard courts .