| 20 | | Bezerkeley Best Pairs Bash | XC | 24-Jan to 25-Jan-1998 | |
| 21 | | 20th Annual Wintertime Open | B | 21-Feb to 22-Feb-1998 | |
| 20 | | 1998 Caldecott Open | B | 28-Feb to 01-Mar-1998 | |
| 11 | | Western State Championships | B | 04-Apr to 05-Apr-1998 | |
| 26 | | Motherlode 98 | B | 18-Apr to 19-Apr-1998 | |
| 11 | | Browns-N-Bows | B | 21-Apr to 22-Apr-1998 | |
| 44 | | Santa Cruz Masters Cup | A | 24-Apr to 26-Apr-1998 | |
| 31 | | 3rd Summertime Open | B | 06-Jun to 07-Jun-1998 | |
| 8 | | KCDC Summer Classic | B | 20-Jun to 21-Jun-1998 | |
| 17 | | Highland Springs Open | C | 27-Jun to 28-Jun-1998 | |
| 19 | | San Francisco Safari | B | 11-Jul to 12-Jul-1998 | |
| 44 | | 1998 Faultline Classic | B | 03-Oct to 04-Oct-1998 | |
| 15 | | Hahamongna Flying Disc Classic | B | 14-Nov to 15-Nov-1998 | |
