1998 Czech Republic motorcycle Grand Prix
The 1998 Czech Republic motorcycle Grand Prix was the tenth round of the 1998 Grand Prix motorcycle racing season. It took place on 23 August 1998 at the Masaryk Circuit located in Brno, Czech Republic.250 cc classification
125 cc classification
Championship standings after the race (500cc)
Below are the standings for the top five riders and constructors after round ten has concluded.
;Riders' Championship standings
;Constructors' Championship standings
| Constructor | Points |
| 1 |  Honda | 245 |
| 2 | Yamaha | 138 |
| 3 | Suzuki | 85 |
| 4 |  Modenas KR3 | 54 |
| 5 |  MuZ | 11 |
- Note: Only the top five positions are included for both sets of standings.
Max Biaggi
Àlex Crivillé
Mick Doohan
Alex Barros