| Event | Year | Start | End | Races | Teams |
|---|---|---|---|---|---|
| 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 |
| Kieler Woche | 1998 | 20 Jun | 23 Jun | 7 | 28 |
| Küchenschlacht | 1998 | 20 Jun | 21 Jun | 3 | 15 |
| Nepean One Design | 1998 | 20 Jun | 21 Jun | 3 | 12 |
| 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 | |
| ABYC Memorial Day Regatta | 1998 | 23 May | 24 May | 7 | 12 |
| Eck-Days | 1998 | 23 May | 24 May | 4 | 36 |
| West River MidAtlantics | 1998 | 23 May | 24 May | 3 | 9 |
| Riva del Garda | 1998 | 21 May | 24 May | 7 | 36 |
| Seattle One-design Centerboard and Keelboat Series | 1998 | 16 May | 17 May | 6 | 4 |
| Hampton Trapeze | 1998 | 15 May | 16 May | 3 | 5 |