1998 PGA of Japan Tour
The 1998 PGA of Japan Tour season was played from 12 March to 13 December. The season consisted of 36 official money events in Japan, as well as the four majors.
Tournament results
The following table shows all the official money events in Japan for the 1998 season. The number in parentheses after each winner's name is the number of Japan Golf Tour events he had won up to and including that tournament. This information is only shown for Japan Golf Tour members.| Date | Tournament | Prize fund | Winner | OWGR points |
| 15 Mar | Token Corporation Cup | 110,000,000 |  Hajime Meshiai | 22 |
| 22 Mar | Dydo Drinco Shizuoka Open | 100,000,000 |  Eduardo Herrera | 16 |
| 29 Mar | Just System KSB Open | 100,000,000 |  Carlos Franco | 16 |
| 5 Apr | Descente Classic Munsingwear Cup | 100,000,000 |  Dinesh Chand | 18 |
| 19 Apr | Tsuruya Open | 100,000,000 | Katsumasa Miyamoto | 16 |
| 26 Apr | Kirin Open | 100,000,000 |  Frankie Miñoza | 24 |
| 3 May | The Crowns | 120,000,000 |  Davis Love III | 34 |
| 10 May | Fujisankei Classic | 120,000,000 | Carlos Franco | 24 |
| 17 May | Japan PGA Championship | 120,000,000 | Brandt Jobe | 24 |
| 24 May | Ube Kosan Open | 100,000,000 | Brandt Jobe | 16 |
| 31 May | Mitsubishi Galant Tournament | 100,000,000 | Toru Taniguchi | 16 |
| 7 Jun | JCB Classic Sendai | 100,000,000 | Yoshi Mizumaki | 16 |
| 14 Jun | Sapporo Tokyu Open | 100,000,000 | Toru Suzuki | 16 |
| 21 Jun | Yomiuri Open | 100,000,000 | Brian Watts | 16 |
| 28 Jun | Gateway to the Open Mizuno Open | 100,000,000 | Brandt Jobe | 20 |
| 5 Jul | PGA Philanthropy Tournament | 100,000,000 | Shigeki Maruyama | 16 |
| 12 Jul | Yonex Open Hiroshima | 100,000,000 | Masashi Ozaki | 16 |
| 26 Jul | Aiful Cup | 100,000,000 | Hidemichi Tanaka | 16 |
| 2 Aug | NST Niigata Open Golf Championship | 60,000,000 | Masayuki Kawamura | 16 |
| 9 Aug | Sanko Grand Summer Championship | 100,000,000 | Shingo Katayama | 16 |
| 30 Aug | Hisamitsu-KBC Augusta | 100,000,000 | Masashi Ozaki | 16 |
| 6 Sep | Japan PGA Match-Play Championship Promise Cup | 100,000,000 | Katsunori Kuwabara | 20 |
| 13 Sep | Suntory Open | 100,000,000 | Mamo Osanai | 24 |
| 20 Sep | ANA Open | 100,000,000 | Keiichiro Fukabori | 24 |
| 27 Sep | Gene Sarazen Jun Classic | 110,000,000 | Todd Hamilton | 22 |
| 4 Oct | Japan Open Golf Championship | 120,000,000 | Hidemichi Tanaka | 32 |
| 11 Oct | Tokai Classic | 110,000,000 | Toshimitsu Izawa | 20 |
| 18 Oct | Nikkei Cup Torakichi Nakamura Memorial | 110,000,000 | Mitsutaka Kusakabe | 20 |
| 25 Oct | Bridgestone Open | 120,000,000 | Nobuhito Sato | 30 |
| 1 Nov | Philip Morris Championship | 200,000,000 | Masashi Ozaki | 24 |
| 8 Nov | Acom International | 120,000,000 | Kaname Yokoo | 16 |
| 15 Nov | Sumitomo VISA Taiheiyo Masters | 150,000,000 |  Lee Westwood | 38 |
| 22 Nov | Dunlop Phoenix Tournament | 250,000,000 | Lee Westwood | 40 |
| 29 Nov | Casio World Open | 150,000,000 | Brian Watts | 36 |
| 6 Dec | Golf Nippon Series JT Cup | 100,000,000 | Katsumasa Miyamoto | 24 |
| 13 Dec | DDI Group Okinawa Open | 80,000,000 | Hidemichi Tanaka | 16 |
Source: