| 4 | | Bezerkeley Best Pairs Bash | XC | 24-Jan to 25-Jan-1998 |
| 1 | | 1998 Caldecott Open | B | 28-Feb to 01-Mar-1998 |
| 18 | | St. Patrick's Classic - Am | B | 14-Mar to 15-Mar-1998 |
| 15 | | Motherlode 98 | B | 18-Apr to 19-Apr-1998 |
| 7 | | Browns-N-Bows | B | 21-Apr to 22-Apr-1998 |
| 18 | | Santa Cruz Masters Cup | A | 24-Apr to 26-Apr-1998 |
| 21 | | Bob West Memorial | B | 23-May to 24-May-1998 |
| 18 | | Disc Golf Journal Greater Peoria Open | A | 30-May to 31-May-1998 |
| 3 | | 1998 Gateway Open | B | 06-Jun to 07-Jun-1998 |
| 8 | | Kansas City Wide Open | A | 13-Jun to 14-Jun-1998 |
| 4 | | Minnesota Majestic | A | 20-Jun to 21-Jun-1998 |
| 4 | | In Flight Open | A | 27-Jun to 28-Jun-1998 |
| 4 | | Delta Systems Mid-America Open | B | 11-Jul to 12-Jul-1998 |
| 58 | | 1998 PDGA Amateur Disc Golf World Championships | M | 21-Jul to 25-Jul-1998 |
| 21 | | Discraft Great Lakes Open | A | 01-Aug to 02-Aug-1998 |
| 4 | | Vintage Cup | B | 29-Aug to 30-Aug-1998 |
| 9 | | 20th Gold Pan Open | B | 17-Oct to 18-Oct-1998 |
| 1 | | 1998 NorCal Series Championships | B | 07-Nov-1998 |
