- Official name: Ljubljana Marathon
- Venue: Любляна
- Date: October
- Distances: 42, 21 and 10 kilometers
- Route limit: 5 hours
- Entry fee: from 54 $
- Website: vw-ljubljanskimaraton.si
- Official name: Bovec Marathon
- Venue: Бовец
- Date: October
- Distances: 42, 21 and 8 kilometers
- Route limit: 5 hours
- Entry fee: from 33 $
- Website: blitz-bovecmaraton.si
- Official name: Istrski Marathon
- Venue: Ізола
- Date: April
- Distances: 42 and 21 kilometers
- Route limit: 5 hours
- Entry fee: from 40 $
- Website: istrski-maraton.si
- Official name: Marathon Treh Src
- Venue: Раденці
- Date: May
- Distances: 42, 21 and 10 kilometers
- Route limit: 6 hours
- Entry fee: from 39 $
- Website: maraton-radenci.si