Kompletní výsledky závodníků GP 125 ccm roku 1989. Mistrem světa se stal Àlex Crivillé na motocyklu JJ Cobas, druhý byl Hans Spaan a třetí Ezio Gianola.
Celkové pořadí jezdců GP 125 ccm 1989
| Poz. | Jméno | Číslo | Národnost | Motocykl | Body | Vítězství |
| 1 |  Àlex Crivillé |
28 | Spain | JJ Cobas | 166 | 5 |
| 2 |  Hans Spaan |
3 | Netherlands | Honda | 152 | 4 |
| 3 |  Ezio Gianola |
2 | Italy | Honda | 138 | 2 |
| 4 |  Hisashi Unemoto |
11 | Japan | Honda | 104 | |
| 5 | Fausto Gresini |
22 | Italy | Aprilia | 102 | |
| 6 | Koji Takada |
18 | Japan | Honda | 99 | |
| 7 |  Stefan Prein |
8 | West Germany | Honda | 92 | |
| 8 | Julián Miralles |
4 | Spain | Derbi | 90 | |
| 9 | Jorge Martínez |
1 | Spain | Derbi | 72 | 1 |
| 10 |  Alan Scott |
12 | United States | Honda | 54 | |
| 11 | Adi Stadler | 53 | ||||
| 12 | Robin Milton | 46 | ||||
| 13 | Luis Miguel Reyes | 35 | ||||
| 14 | Domenico Brigaglia | 34 | ||||
| 15 | Dirk Raudies | 29 | ||||
| 16 | Alfred Waibel | 25 | ||||
| 17 | Taru Rinne | 23 | ||||
| 18 | Lucio Pietroniro | 22 | ||||
| 19 | Bruno Casanova | 20 | ||||
| 20 | Doriano Romboni | 20 | ||||
| 21 | Flemming Kistrup | 18 | ||||
| 22 | Robin Appleyard | 18 | ||||
| 23 | Thierry Feuz | 15 | ||||
| 24 | Masayuki Hirose | 13 | ||||
| 25 | Herri Torrontegui | 13 | ||||
| 26 | Kenichi Yoshida | 11 | ||||
| 27 | Jean Claude Selini | 11 | ||||
| 28 | Masato Shima | 10 | ||||
| 29 | Corrado Catalano | 10 | ||||
| 30 | Johnny Wickstroem | 10 | ||||
| 31 | Yutaka Fujihara | 9 | ||||
| 32 | Kazuaki Yamashita | 8 | ||||
| 33 | Hubert Abold | 8 | ||||
| 34 | Shinichi Fujiyama | 7 | ||||
| 35 | Kazuya Yamada | 6 | ||||
| 36 | Gerhard Waibel | 6 | ||||
| 37 | Mike Leitner | 4 | ||||
| 38 | Gabriele Debbia | 3 | ||||
| 39 | Jean Pierre Jeandat | 3 | ||||
| 40 | Stuart Edwards | 3 | ||||
| 42 | Bady Hassaine | 2 | ||||
| 42 | Josef Fischer | 2 | ||||
| 44 | Alex Bedford | 1 | ||||
| 44 | Heinz Lüthi | 1 | ||||
| 44 | Herve Duffard | 1 |
- Zdroj: https://en.wikipedia.org
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- kurzíva = nejrychlejší kolo závodu
- výsledek tučně = poleposition
- Ret = nedokončil závod (retired)
- NC = neklasifikován (non-classified)
- C = závod zrušen (cancelled)
- EX = vyloučen (excluded)
- DNS = nenastoupil do závodu (did not start)
- DSQ = diskvalifikován (disqualified)
- DNQ = nekvalifikoval se (did not qualified)
- DNP = nezúčastnil se (did not participate)
- WD = výsledek anulován (withdrew)
