| 1 | | Bezerkeley Best Pairs Bash | XC | 24-Jan to 25-Jan-1998 | $140 |
| 1 | | 20th Annual Wintertime Open | B | 21-Feb to 22-Feb-1998 | $510 |
| 2 | | Western State Championships | B | 04-Apr to 05-Apr-1998 | $215 |
| 3 | | Motherlode 98 | B | 18-Apr to 19-Apr-1998 | $165 |
| 1 | | Bob West Memorial | B | 23-May to 24-May-1998 | $1,000 |
| 2 | | 3rd Summertime Open | B | 06-Jun to 07-Jun-1998 | $420 |
| 8 | | Minnesota Majestic | A | 20-Jun to 21-Jun-1998 | $110 |
| 7 | | In Flight Open | A | 27-Jun to 28-Jun-1998 | $191 |
| 10 | | Sinnissippi Open | B | 04-Jul to 05-Jul-1998 | |
| 3 | | 1998 Lumskull Open | A | 11-Jul to 12-Jul-1998 | $387 |
| 3 | | Quonset Hut Hall of Chains Classic | A | 18-Jul to 19-Jul-1998 | $680 |
| 3 | | 1998 Brent Hambrick Memorial | B | 25-Jul to 26-Jul-1998 | $750 |
| 4 | | Discraft Great Lakes Open | A | 01-Aug to 02-Aug-1998 | $700 |
| 16 | | 1998 PDGA Professional Disc Golf World Championships | M | 03-Aug to 08-Aug-1998 | $269 |
| 3 | | 1998 El Dorado Open | B | 22-Aug to 23-Aug-1998 | $149 |
| 7 | | 1998 Faultline Classic | B | 03-Oct to 04-Oct-1998 | $127 |
| 5 | | SoCal Disc Golf Championships | B | 10-Oct to 11-Oct-1998 | $150 |
| 5 | | 20th Gold Pan Open | B | 17-Oct to 18-Oct-1998 | $72 |
| 1 | | 1998 NorCal Series Championships | B | 07-Nov-1998 | $270 |
| 5 | | Hahamongna Flying Disc Classic | B | 14-Nov to 15-Nov-1998 | $75 |
| 2 | | Fountain Hills Thrills | C | 21-Nov to 22-Nov-1998 | $200 |
