2017–18 Campionato Sammarinese di Calcio

Because there is no promotion or relegation in the league, the same 15 teams who competed in the league last season competed in the league this season. • S.P. Cailungo (Borgo Maggiore) • S.S. Cosmos (Serravalle) • F.C. Domagnano (Domagnano) • S.C. Faetano (Faetano) • F.C. Fiorentino (Fiorentino) • S.S. Folgore Falciano Calcio (Serravalle) • A.C. Juvenes/Dogana (Serravalle) • S.P. La Fiorita (Montegiardino) • A.C. Libertas (Borgo Maggiore) • S.S. Murata (San Marino) • S.S. Pennarossa (Chiesanuova) • S.S. San Giovanni (Borgo Maggiore) • S.P. Tre Fiori (Fiorentino) • S.P. Tre Penne (Serravalle) • S.S. Virtus (Acquaviva) ==Regular season==

The 15 clubs were split into two groups; one with eight clubs and another with seven clubs. Group A Group B ==Results==

All teams played twice against the teams within their own group and once against the teams from the other group. This means that the clubs in the eight-club group played 21 matches each while the clubs in the seven-club group played 20 matches each during the regular season. ==Play-offs==

The top three teams from each group advanced to a play-off which determined the season's champion and qualifiers for the Champions League and the Europa League. The play-offs were played in a double-elimination format with both regular season group winners earning byes in the first and second round. All matches were decided over one leg with extra time and then penalties used to break ties, when required. Bracket First round ---- Second round ---- Domagnano eliminated. Third round ---- Libertas eliminated. Fourth round ---- Tre Penne eliminated. Semi-final Tre Fiori eliminated and qualified for Europa League. Final La Fiorita qualified for 2018–19 Champions League preliminary round and Folgore qualified for 2018–19 Europa League preliminary round. ==References==