| Event | Year | Start | End | Races | Teams |
|---|---|---|---|---|---|
| Summer Race | 1998 | 11 Jul | 12 Jul | ||
| Championnat de France | 1998 | 11 Jul | 14 Jul | 9 | 64 |
| Saarland Meisterschaft | 1998 | 04 Jul | 05 Jul | ||
| Pokalregatta – Sommerregatta | 1998 | 04 Jul | 05 Jul | 3 | 15 |
| Canadian Championship | 1998 | 03 Jul | 05 Jul | 6 | 33 |
| Internationale Deutsche Meisterschaft | 1998 | 02 Jul | 05 Jul | ||
| WRSC One Day 505 Regatta/Open House | 1998 | 27 Jun | 27 Jun | 4 | 11 |
| Champagner-Regatta | 1998 | 27 Jun | 28 Jun | ||
| St Francis Regatta | 1998 | 27 Jun | 28 Jun | 6 | 15 |
| Dansk Mesterskab | 1998 | 26 Jun | 28 Jun | 5 | 15 |
| Nieuwpoort | 1998 | 26 Jun | 28 Jun | 6 | 39 |
| Küchenschlacht | 1998 | 20 Jun | 21 Jun | 3 | 15 |
| Nepean One Design | 1998 | 20 Jun | 21 Jun | 3 | 12 |
| Kieler Woche | 1998 | 20 Jun | 23 Jun | 7 | 28 |
| Sommerwettfahrt | 1998 | 13 Jun | 13 Jun | 4 | 16 |
| Scandinavian Championship | 1998 | 12 Jun | 14 Jun | 9 | 26 |
| Baltic Jollenregatta | 1998 | 06 Jun | 07 Jun | ||
| Pfingstbusch | 1998 | 30 May | 01 Jun | 6 | 31 |
| Pfingstwettfahrten | 1998 | 30 May | 01 Jun | 4 | 20 |
| Inland Championship | 1998 | 24 May | 26 May | 8 |