1989 Thailand Amateur Championship - Finishes
| Finish | Name | Matches won | Frames won | Centuries | Points | Prize money |
|---|---|---|---|---|---|---|
| Winner |  Udon Khaimuk |
4 | 26 (68.42%) of 38 | 0 | 0 | 1,140 |
| Final | Tai Pichit |
3 | 23 (54.76%) of 42 | 0 | 0 | 680 |
| Semi-final | Rom Surin |
2 | 15 (55.56%) of 27 | 0 | 0 | 455 |
| Semi-final | Nopadol Nopachorn |
2 | 13 (52%) of 25 | 0 | 0 | 455 |
| Quarter-final | Ket Tonsing |
1 | 10 (52.63%) of 19 | 0 | 0 | 0 |
| Quarter-final | Thongchai Sae Lim |
1 | 8 (53.33%) of 15 | 0 | 0 | 0 |
| Quarter-final | Anurat Wongchan |
1 | 8 (47.06%) of 17 | 0 | 0 | 0 |
| Quarter-final | Sakchai Tantanatipchai |
1 | 7 (50%) of 14 | 0 | 0 | 0 |
| Last 16 | Nat Kancheuy |
0 | 3 (37.5%) of 8 | 0 | 0 | 0 |
| Last 16 | Pitsanu Meesuwan |
0 | 3 (37.5%) of 8 | 0 | 0 | 0 |
| Last 16 | Padipat Wattanaporn |
0 | 3 (37.5%) of 8 | 0 | 0 | 0 |
| Last 16 | Thirachote Baisamud |
0 | 2 (28.57%) of 7 | 0 | 0 | 0 |
| Last 16 | Sanan Naboon |
0 | 2 (28.57%) of 7 | 0 | 0 | 0 |
| Last 16 | Sakchai Simngam |
0 | 2 (28.57%) of 7 | 0 | 0 | 0 |
| Last 16 | Precha Pawanathamsuk |
0 | 1 (16.67%) of 6 | 0 | 0 | 0 |
| Last 16 | Sompop Pleumjit |
0 | 1 (16.67%) of 6 | 0 | 0 | 0 |