| 17 | | Bezerkeley Best Pairs Bash | XC | 24-Jan to 25-Jan-1998 | |
| 25 | | 20th Annual Wintertime Open | B | 21-Feb to 22-Feb-1998 | |
| 20 | | 1998 Caldecott Open | B | 28-Feb to 01-Mar-1998 | |
| 9 | 247.50 | St. Patrick's Classic | B | 28-Mar to 29-Mar-1998 | $87 |
| 51 | | Santa Cruz Masters Cup | A | 24-Apr to 26-Apr-1998 | |
| 16 | | Wil-Low Pro/Am Jam | B | 09-May to 10-May-1998 | |
| 7 | | Windjammer Open | B | 23-May to 24-May-1998 | |
| 10 | | Tahoe Challenge IV - Pro | B | 13-Jun to 14-Jun-1998 | |
| 15 | | Highland Springs Open | C | 27-Jun to 28-Jun-1998 | |
| 18 | | San Francisco Safari | B | 11-Jul to 12-Jul-1998 | |
| 118 | | 1998 PDGA Profesional Disc Golf World Championships | M | 03-Aug to 08-Aug-1998 | |
| 19 | | Auburn Open | B | 15-Aug to 16-Aug-1998 | |
| 14 | | Vintage Cup | B | 29-Aug to 30-Aug-1998 | |
| 19 | | Indian Summer '98/California State Flying Disc Championships | B | 26-Sep-1998 | |
| 18 | | 1998 Faultline Classic | B | 03-Oct to 04-Oct-1998 | |
| 13 | | 20th Gold Pan Open | B | 17-Oct to 18-Oct-1998 | |
