| Open Noordzeekampioenschap 2020 | ||||||
| date | organising club | location | qualifies for | classes | ||
| Nieuwpoort Challenge Van De Velde | sa 10/5 | KYCN | Nieuwpoort | ONZK 1 | IRC+CR | |
| Nieuwpoort Challenge Jonart | sa 16/5 | WSKLuM | Nieuwpoort | ONZK 2 | IRC+CR | |
| CR Sailing Series Blankenberge #1 | sa 16/5 | Blanksailing | Blberge-Npt | CR | ||
| CR Sailing Series Blankenberge #2 | so 17/5 | Blanksailing | Npt-Blberge | CR | ||
| Dover Strait Race Oostende-Ramsgate | th 21/5 | RNSYC-RTYC | Oostende | ONZK 3 | IRC+CR | |
| Euro Regatta Ramsgate | fr 22/5 | RTYC | Ramsgate | IRC+CR | ||
| Dover Strait Race Ramsgate - Oostende | sa 23/5 | RNSYC-RTYC | Oostende | ONZK 4 | IRC+CR | |
| Schelderegatta | sa 6/6 | RYCB | Hansweert | CR | ||
| Light Vessel Weekend Zeebrugge | sa - su 4-5/7 | RBSC | Zeebrugge | ONZK 5-6 | IRC+CR | |
| CR Sailing Series Blankenberge #3 | sa 22/8 | Blanksailing | Blankenberge | CR | ||
| Breskens Sailing Weekend | fr-su 28-30/8 | Stichting Breskens | Breskens | ONZK 7-8-9 | IRC+CR | |
| CR Sailing Series Blankenberge #4 - 5 | sa-su 12-13/9 | Blanksailing | Blankenberge | CR | ||
| Oostende Sailing Weekend | sa-su 19-20/9 | RNSYC | Oostende | ONZK 10-11 | IRC+CR | |
| Antwerp Race | sa 3/10 | VZW Antwerp Race | Schelde | ONZK 12 | IRC+CR | |