Kompletní výsledky závodníků GP 250 ccm roku 1989. Mistrem světa se stal Sito Pons na motocyklu Honda, druhý byl Reinhold Roth a třetí Jacques Cornu.
Celkové pořadí jezdců GP 250 ccm 1989
| Poz. | Jméno | Číslo | Národnost | Tým | Motocykl | Body | Vítězství |
| 1 |  Sito Pons |
1 | Spain | Campsa-Honda | NSR250 | 262 | 7 |
| 2 |  Reinhold Roth |
5 | Germany | HB Römer-Honda | NSR250 | 190 | 2 |
| 3 |  Jacques Cornu |
3 | Switzerland | Lucky Strike Elf-Honda | NSR250 | 187 | 1 |
| 4 | Carlos Cardús |
9 | Spain | Repsol-Honda | NSR250 | 162 | 1 |
| 5 |  Luca Cadalora |
6 | Italy | Marlboro Yamaha-Agostini | YZR250 | 127 | 2 |
| 6 |  Masahiro Shimizu |
10 | Japan | Ajinomoto-Honda | NSR250 | 116 | 0 |
| 7 |  Jean-Philippe Ruggia |
7 | France | Gauloises Blondes-Yamaha | YZR250 | 110 | 0 |
| 8 | Juan Garriga |
2 | Spain | Ducados-Yamaha | YZR250 | 98 | 0 |
| 9 | Helmut Bradl |
17 | Germany | HB Rallye Sport-Honda | NSR250 | 88 | 0 |
| 10 | Martin Wimmer |
14 | Germany | Hein Gericke-Aprilia | RS250 | 62 | 0 |
| 11 | Loris Reggiani | 52 | |||||
| 12 | Didier de Radiguès | 51 | |||||
| 13 | Wilco Zeelenberg | 41 | |||||
| 14 |  John Kocinski |
19 | USA | Team Yamaha | YZR250 | 40 | 2 |
| 15 | Toshihiko Honma | 36 | |||||
| 16 | Jochen Schmid | 36 | |||||
| 17 | Carlos Lavado | 31 | |||||
| 18 | Alex Barros | 30 | |||||
| 19 | Garry Cowan | 25 | |||||
| 20 | Jim Filice | 22 | |||||
| 21 | Renzo Colleoni | 21 | |||||
| 22 | Ivan Palazzese | 19 | |||||
| 23 | Alberto Puig | 18 | |||||
| 24 | Harald Eckl | 18 | |||||
| 25 | Marcellino Lucchi | 17 | |||||
| 26 | Daniel Amatriain | 14 | |||||
| 27 | Alain Bronec | 11 | |||||
| 28 | Tadayuki Okada | 10 | |||||
| 29 | Toshinobu Shiomori | 9 | |||||
| 30 | Jose Morillas | 9 | |||||
| 31 | Stefano Caracchi | 9 | |||||
| 32 | Fausto Ricci | 8 | |||||
| 33 | Alberto Rota | 6 | |||||
| 34 | Hans Spaan | 6 | |||||
| 35 | Daryl Beattie | 4 | |||||
| 36 | Kevin Mitchell | 4 | |||||
| 37 | Paolo Casoli | 4 | |||||
| 38 | Andy Preining | 4 | |||||
| 39 | Maurizio Vitali | 2 | |||||
| 40 | Luis Lavado | 2 | |||||
| 41 | Junya Arai | 1 | |||||
| 41 | Harald Becker | 1 | |||||
| 41 | Manfred Herweh | 1 | |||||
| 41 | August Auinger | 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)
