The 1998 Dutch TT was the seventh round of the 1998 Grand Prix motorcycle racing season. It took place on 27 June 1998 at the TT Circuit Assen located in Assen, Netherlands.

500 cc classification Pos. No. Rider Team Manufacturer Laps Time/Retired Grid Points 1 1 Mick Doohan Repsol Honda Honda 20 41:17.788 1 25 2 6 Max Biaggi Marlboro Team Kanemoto Honda 20 +0.560 4 20 3 11 Simon Crafar Red Bull Yamaha WCM Yamaha 20 +1.151 2 16 4 9 Alex Barros Honda Gresini Honda 20 +5.151 6 13 5 8 Carlos Checa Movistar Honda Pons Honda 20 +13.827 5 11 6 4 Àlex Crivillé Repsol Honda Honda 20 +21.256 9 10 7 3 Nobuatsu Aoki Suzuki Grand Prix Team Suzuki 20 +28.877 8 9 8 2 Tadayuki Okada Repsol Honda Honda 20 +33.544 10 8 9 55 Régis Laconi Red Bull Yamaha WCM Yamaha 20 +44.870 17 7 10 17 Jurgen van den Goorbergh Dee Cee Jeans Racing Team Honda 20 +48.118 11 6 11 18 Garry McCoy Shell Advance Racing Honda 20 +1:11.257 15 5 12 10 Kenny Roberts Jr. Team Roberts Modenas KR3 20 +1:30.137 13 4 13 23 Matt Wait FCC TSR Honda 20 +1:39.885 19 3 14 88 Scott Smart Team Millar Honda Britain Honda 20 +2:49.856 20 2 15 26 Bernard Garcia Tecmas Honda Elf Honda 20 +3:02.687 18 1 Ret 5 Norick Abe Yamaha Team Rainey Yamaha 16 Retirement 3 Ret 15 Sete Gibernau Repsol Honda Honda 16 Retirement 12 Ret 20 Luca Cadalora Suzuki Grand Prix Team Suzuki 9 Accident 7 Ret 14 Juan Borja Shell Advance Racing Honda 9 Accident 16 Ret 16 Jean-Philippe Ruggia MuZ Roc RennSport MuZ 5 Retirement 14 DNS 28 Ralf Waldmann Marlboro Team Roberts Modenas KR3 Did not start DNS 19 John Kocinski Movistar Honda Pons Honda Did not start DNQ 57 Fabio Carpani Team Polini Inoxmacel Honda Did not qualify Sources:

250 cc classification Pos. No. Rider Manufacturer Laps Time/Retired Grid Points 1 46 Valentino Rossi Aprilia 18 38:31.905 3 25 2 11 Jürgen Fuchs Aprilia 18 +19.184 4 20 3 6 Haruchika Aoki Honda 18 +19.516 5 16 4 8 Luis d'Antin Yamaha 18 +21.682 21 13 5 5 Tohru Ukawa Honda 18 +21.721 6 11 6 27 Sebastián Porto Aprilia 18 +21.927 9 10 7 7 Takeshi Tsujimura Yamaha 18 +22.084 10 9 8 24 Jason Vincent TSR-Honda 18 +27.290 17 8 9 37 Luca Boscoscuro TSR-Honda 18 +33.444 15 7 10 44 Roberto Rolfo TSR-Honda 18 +37.467 11 6 11 12 Noriyasu Numata Suzuki 18 +42.228 12 5 12 9 Jeremy McWilliams TSR-Honda 18 +42.659 13 4 13 20 William Costes Honda 18 +50.841 16 3 14 47 Ivan Clementi Yamaha 18 +52.029 22 2 15 16 Johan Stigefelt Suzuki 18 +53.759 20 1 16 25 Yasumasa Hatakeyama ERP Honda 18 +1:08.503 19 17 14 Davide Bulega ERP Honda 18 +1:08.716 18 18 76 Jarno Janssen Honda 18 +1:21.462 24 19 75 Maurice Bolwerk Honda 18 +1:21.546 23 20 78 Rudie Markink Honda 18 +1:44.511 25 21 77 André Romein Honda 18 +2:11.041 26 Ret 17 José Luis Cardoso Yamaha 12 Accident 14 Ret 65 Loris Capirossi Aprilia 9 Retirement 1 Ret 31 Tetsuya Harada Aprilia 8 Retirement 2 Ret 19 Olivier Jacque Honda 4 Accident 7 Ret 4 Stefano Perugini Honda 4 Accident 8 DNS 18 Osamu Miyazaki Yamaha Did not start DNQ 79 Henk van de Lagemaat Honda Did not qualify WD 41 Federico Gartner Aprilia Withdrew Source:

125 cc classification Pos. No. Rider Manufacturer Laps Time/Retired Grid Points 1 13 Marco Melandri Honda 17 38:27.391 6 25 2 4 Kazuto Sakata Aprilia 17 +0.028 1 20 3 3 Tomomi Manako Honda 17 +9.626 3 16 4 10 Lucio Cecchinello Honda 17 +10.331 8 13 5 5 Masaki Tokudome Aprilia 17 +10.410 2 11 6 32 Mirko Giansanti Honda 17 +10.425 4 10 7 15 Roberto Locatelli Honda 17 +10.700 7 9 8 9 Frédéric Petit Honda 17 +11.417 12 8 9 22 Steve Jenkner Aprilia 17 +14.678 10 7 10 20 Masao Azuma Honda 17 +24.158 5 6 11 23 Gino Borsoi Aprilia 17 +25.011 14 5 12 41 Youichi Ui Yamaha 17 +30.265 13 4 13 52 Hiroyuki Kikuchi Honda 17 +30.369 15 3 14 26 Ivan Goi Aprilia 17 +33.345 9 2 15 39 Jaroslav Huleš Honda 17 +33.527 21 1 16 21 Arnaud Vincent Aprilia 17 +33.742 11 17 29 Ángel Nieto, Jr. Aprilia 17 +36.359 20 18 14 Federico Cerroni Aprilia 17 +59.159 19 19 17 Enrique Maturana Yamaha 17 +1:02.676 23 20 59 Jerónimo Vidal Aprilia 17 +1:02.920 17 21 65 Andrea Iommi Honda 17 +1:43.557 24 22 74 Hans Koopman EGA Honda 17 +3:53.297 25 23 78 Wilhelm van Leeuwen Honda 16 +1 lap 27 24 76 Harold de Haan Honda 16 +1 lap 28 Ret 62 Yoshiaki Katoh Yamaha 10 Retirement 22 Ret 8 Gianluigi Scalvini Honda 9 Accident 16 Ret 16 Christian Manna Yamaha 9 Retirement 26 Ret 7 Emilio Alzamora Aprilia 0 Retirement 18 DNQ 77 Ronnie Timmer Honda Did not qualify DNQ 75 Wim Kroegman Yamaha Did not qualify Source:

Championship standings after the race (500cc)

Below are the standings for the top five riders and constructors after round seven has concluded.

Riders' Championship standings Rider Points 1 Max Biaggi 118 2 Mick Doohan 115 3 Àlex Crivillé 113 4 Carlos Checa 106 5 Nobuatsu Aoki 56

Constructors' Championship standings Constructor Points 1 Honda 175 2 Yamaha 91 3 Suzuki 66 4 Modenas KR3 38 5 MuZ 6

Note: Only the top five positions are included for both sets of standings.

References