The 1998 Grand Prix motorcycle racing season was the 50th F.I.M. Road Racing World Championship season.

Season summary

Mick Doohan and Honda continued to dominate the 500 class with the Australian taking 8 victories and Honda winning all but one race.^[1] Simon Crafar winning the British Grand Prix for Yamaha's lone victory.^[1] After being shocked by 500 class rookie Max Biaggi's opening round victory in the Japanese Grand Prix, Doohan went on to claim his fifth world championship in as many years, finishing off the season with four consecutive wins.^[1]

A controversial finish marked the 250 title race. Aprilia teammates Tetsuya Harada and Loris Capirossi both went into the final race in Argentina with a chance to win the title, Capirossi leading Harada by 4 points.^[1] With one corner to go, Harada was in second, with Capirossi third, which would have given Harada the championship on tiebreak. Entering the final turn, his bike was struck from behind by Capirossi's machine, sending both riders off the track.^[1] Valentino Rossi took the win with Capirossi recovering to finish in second and claiming the title.^[1] Afterwards, Aprilia would release Capirossi from his contract.^[1]

Kazuto Sakata would win his second 125 title for Aprilia after a tight battle with Tomomi Manako and Marco Melandri.^[1]

1998 Grand Prix season calendar

The following Grands Prix were scheduled to take place in 1998:^[2]

Round	Date	Grand Prix	Circuit
1	5 April	Marlboro Grand Prix of Japan	Suzuka Circuit
2	19 April	Marlboro Malaysian Grand Prix	Johor Circuit
3	3 May	Gran Premio Marlboro de España	Circuito Permanente de Jerez
4	17 May	Gran Premio Q8 d'Italia	Mugello Circuit
5	31 May	Grand Prix de France	Circuit Paul Ricard
6	14 June	Gran Premio Comunidad de Madrid	Circuito Permanente del Jarama
7	27 June ††	Rizla Dutch TT	TT Circuit Assen
8	5 July	British Grand Prix	Donington Park
9	19 July	Polini Motorrad Grand Prix Deutschland	Sachsenring
10	23 August	Grand Prix České republiky	Brno Circuit
11	6 September	Gran Premio Cirio Città di Imola	Autodromo Enzo e Dino Ferrari
12	20 September	Grand Prix Marlboro de Catalunya	Circuit de Catalunya
13	4 October	Qantas Australian Grand Prix	Phillip Island Grand Prix Circuit
14	25 October	Gran Premio Marlboro de Argentina	Autódromo Oscar Alfredo Gálvez

†† = Saturday race

Calendar changes

• The Malaysian Grand Prix and Japanese Grand Prix swapped places, with Japan hosting the opening round Grand Prix, instead of Malaysia.
• The Malaysian Grand Prix moved from the Shah Alam Circuit to the Johor Circuit.
• The German Grand Prix moved from the Nürburgring to the Sachsenring because of the very low number of spectators who came to view the race there.
• The Austrian Grand Prix was removed from the calendar, mainly because of a low number of spectators.
• The Rio Grand Prix was removed from the calendar because of organisational problems.
• The Indonesian Grand Prix was removed from the calendar because of 1997 Asian Financial Crisis that affected the country and was replaced by the Argentine Grand Prix.
• The Madrid Grand Prix was added as an extra, one-off Grand Prix.

1998 Grand Prix season results

Round	Date	Race	Location	125cc winner	250cc winner	500cc winner	Report
1	5 April	Japanese motorcycle Grand Prix	Suzuka	Kazuto Sakata	Daijiro Kato	Max Biaggi	Report
2	19 April	Malaysian motorcycle Grand Prix	Johor	Noboru Ueda	Tetsuya Harada	Mick Doohan	Report
3	3 May	Spanish motorcycle Grand Prix	Jerez	Kazuto Sakata	Loris Capirossi	Àlex Crivillé	Report
4	17 May	Italian motorcycle Grand Prix	Mugello	Tomomi Manako	Marcellino Lucchi	Mick Doohan	Report
5	31 May	French motorcycle Grand Prix	Paul Ricard	Kazuto Sakata	Tetsuya Harada	Àlex Crivillé	Report
6	14 June	Madrid motorcycle Grand Prix	Jarama	Lucio Cecchinello	Tetsuya Harada	Carlos Checa	Report
7	27 June ††	Dutch TT	Assen	Marco Melandri	Valentino Rossi	Mick Doohan	Report
8	5 July	British motorcycle Grand Prix	Donington	Kazuto Sakata	Loris Capirossi	Simon Crafar	Report
9	19 July	German motorcycle Grand Prix	Sachsenring	Tomomi Manako	Tetsuya Harada	Mick Doohan	Report
10	23 August	Czech Republic motorcycle Grand Prix	Brno	Marco Melandri	Tetsuya Harada	Max Biaggi	Report
11	6 September	City of Imola motorcycle Grand Prix	Imola	Tomomi Manako	Valentino Rossi	Mick Doohan	Report
12	20 September	Catalan motorcycle Grand Prix	Catalunya	Tomomi Manako	Valentino Rossi	Mick Doohan	Report
13	4 October	Australian motorcycle Grand Prix	Phillip Island	Masao Azuma	Valentino Rossi	Mick Doohan	Report
14	25 October	Argentine motorcycle Grand Prix	Buenos Aires	Tomomi Manako	Valentino Rossi	Mick Doohan	Report

†† = Saturday race

Participants

500cc participants

Team Constructor Motorcycle No. Rider Rounds Repsol Honda Honda Honda NSR500 1 Mick Doohan All 2 Tadayuki Okada 1–4, 7, 10–14 4 Àlex Crivillé All Honda NSR500V 15 Sete Gibernau All Suzuki Grand Prix Team Suzuki Suzuki RGV500 (XR88) 3 Nobuatsu Aoki All 20 Luca Cadalora 7 25 Yukio Kagayama 2–5 27 Katsuaki Fujiwara 10–12 29 Keiichi Kitagawa 1 33 Mark Willis 13 Yamaha Team Rainey Yamaha Yamaha YZR500 (OWK1) 5 Norick Abe All 12 Jean-Michel Bayle 10–12, 14 20 Luca Cadalora 5–6 21 Kyoji Nanba 1–4, 9 Marlboro Team Kanemoto Honda Honda NSR500 6 Max Biaggi All Muz Roc Rennen Sport MuZ MuZ 500 7 Doriano Romboni 1–2 16 Jean-Philippe Ruggia 7 20 Luca Cadalora 14 77 Eskil Suter 4–6, 8–12 Movistar Honda Pons Honda Honda NSR500 8 Carlos Checa 1–8, 10–14 14 Juan Borja 8 19 John Kocinski 1–7, 10–14 39 Gregorio Lavilla 9 Honda Gresini Honda Honda NSR500 9 Alex Barros All Team Roberts Marlboro Team Roberts Modenas KR3 Modenas KR3 10 Kenny Roberts Jr. All 28 Ralf Waldmann 1–7, 9–14 Red Bull Yamaha WCM Yamaha Yamaha YZR500 11 Simon Crafar All 55 Régis Laconi 1, 3–14 Shell Advance Racing Honda Honda NSR500V 14 Juan Borja 1–7, 10–14 18 Garry McCoy 1–10, 13 26 Bernard Garcia 11 42 Craig Connell 12, 14 42 Craig Connell 13 53 Russel Wood 2 58 Felisberto Teixeira 3 71 Juan Pablo Gianini 14 72 Fernando Cristóbal 6 72 Fernando Cristóbal 8–9 Dee Cee Jeans Racing Team Honda Honda NSR500V 17 Jurgen van den Goorbergh All Tecmas Honda Elf Honda Honda NSR500V 22 Sébastien Gimbert 1–6, 10–14 26 Bernard Garcia 7–9 F.C.C. TSR Honda Honda NSR500V 23 Matt Wait All Team Paton Paton Paton V70 C10/4 43 Paolo Tessari 11–12 63 Gianmaria Liverani 4 Yamaha Racing Team Yamaha Yamaha YZR500 50 Noriyuki Haga 1 BP Yamaha Racing Team Yamaha Yamaha YZR500 52 Norihiko Fujiwara 2 Team Polini Inoxmacel Honda Honda NSR500V 57 Fabio Carpani All Team Zupin Honda Honda NSR500V 60 Jörg Schöllhorn 9 Team Vimto Honda/Paul Bird Honda Honda NSR500V 68 John McGuinness 8 Team Millar Honda Britain Honda Honda NSR500V 88 Scott Smart 1, 3–14

Key Regular Rider Wildcard Rider Replacement Rider

Standings

Riders' standings

500cc

^[3][4]

Scoring system

Points were awarded to the top fifteen finishers. A rider had to finish the race to earn points.

• Riders marked with light blue background were eligible for Rookie of the Year award.

Pos Rider Bike JPN MAL ESP ITA FRA MAD NED GBR GER CZE IMO CAT AUS ARG Pts 1 Mick Doohan Honda Ret 1 2 1 2 Ret 1 2 1 Ret 1 1 1 1 260 2 Max Biaggi Honda 1 3 3 2 5 6 2 6 2 1 3 DSQ 8 5 208 3 Àlex Crivillé Honda 4 4 1 3 1 5 6 4 3 2 2 Ret 3 Ret 198 4 Carlos Checa Honda 8 2 4 4 3 1 5 WD 7 10 6 DNS 8 139 5 Alex Barros Honda 7 Ret 5 9 Ret 9 4 5 4 3 4 7 4 3 138 6 Norifumi Abe Yamaha 14 Ret 6 6 7 2 Ret 3 Ret 5 6 3 5 4 128 7 Simon Crafar Yamaha 9 Ret 13 7 9 8 3 1 Ret 11 11 5 2 13 119 8 Tadayuki Okada Honda 2 Ret 7 DNQ 8 4 7 2 9 2 106 9 Nobuatsu Aoki Suzuki 6 Ret 8 8 8 4 7 7 10 12 9 11 6 12 101 10 Régis Laconi Yamaha DNS 14 10 11 7 9 8 5 9 12 8 7 6 86 11 Sete Gibernau Honda 10 Ret 12 14 10 3 Ret Ret Ret 6 8 4 Ret 9 72 12 John Kocinski Honda 13 5 11 5 4 Ret DNS 15 13 9 12 10 64 13 Kenny Roberts Jr. Modenas KR3 11 11 9 Ret 13 WD 12 Ret 6 10 14 10 10 11 59 14 Ralf Waldmann Modenas KR3 Ret 9 10 11 12 10 DNS 7 13 15 12 Ret 15 46 15 Jurgen van den Goorbergh Honda Ret 8 18 16 15 Ret 10 9 8 16 Ret 13 11 14 40 16 Jean-Michel Bayle Yamaha 8 5 Ret 7 28 17 Garry McCoy Honda Ret 10 15 13 17 11 11 13 Ret DNS Ret 23 18 Kyoji Nanba Yamaha 5 Ret 16 12 9 22 19 Matt Wait Honda Ret 12 20 Ret 18 13 13 Ret 14 20 18 14 13 17 17 20 Noriyuki Haga Yamaha 3 16 21 Scott Smart Honda Ret 21 19 Ret 12 14 10 Ret 21 Ret 15 15 DNS 14 22 Yukio Kagayama Suzuki 6 19 17 DNS 10 23 Luca Cadalora Yamaha 6 Ret 10 Suzuki Ret MuZ Ret 24 Bernard Garcia Honda 15 11 12 Ret 10 25 Norihiko Fujiwara Yamaha 7 9 26 Eskil Suter MuZ 18 Ret 14 Ret 13 14 Ret Ret 7 27 Gregorio Lavilla Honda 11 5 28 Doriano Romboni MuZ 12 DNS 4 29 John McGuinness Honda 12 4 30 Sébastien Gimbert Honda Ret 13 17 15 16 DNQ 19 Ret Ret Ret 16 4 31 Fernando Cristóbal Honda 15 14 15 4 32 Juan Borja Honda 15 Ret Ret Ret 14 Ret Ret DNS 17 17 Ret 16 18 3 33 Mark Willis Suzuki 14 2 34 Fabio Carpani Honda 16 Ret Ret 20 19 16 DNQ 15 16 Ret 19 Ret Ret 20 1 Katsuaki Fujiwara Suzuki 18 16 Ret 0 Paolo Tessari Paton Ret 16 0 Craig Connell Honda Ret Ret 19 0 Juan Pablo Gianini Honda 21 0 Felisberto Teixeira Honda 22 0 Keiichi Kitagawa Suzuki Ret 0 Russell Wood Honda Ret 0 Gianmaria Liverani Paton Ret 0 Jean-Philippe Ruggia MuZ Ret 0 Jörg Schöllhorn Honda WD 0 Pos. Rider Bike JPN MAL ESP ITA FRA MAD NED GBR GER CZE IMO CAT AUS ARG Pts

Colour Result Gold Winner Silver Second place Bronze Third place Green Points finish Blue Non-points finish Non-classified finish (NC) Purple Retired (Ret) Red Did not qualify (DNQ) Did not pre-qualify (DNPQ) Black Disqualified (DSQ) White Did not start (DNS) Withdrew (WD) Race cancelled (C) Blank Did not practice (DNP) Did not arrive (DNA) Excluded (EX) Bold – Pole position Italics – Fastest lap

250cc

^[5]

Scoring system

Points were awarded to the top fifteen finishers. A rider had to finish the race to earn points.

• Riders marked with light blue background were eligible for Rookie of the Year award.

Pos Rider Bike JPN MAL ESP ITA FRA MAD NED GBR GER CZE IMO CAT AUS ARG Pts 1 Loris Capirossi Aprilia 7 5 1 4 3 3 Ret 1 4 2 2 3 2 2 224 2 Valentino Rossi Aprilia Ret Ret 2 2 2 Ret 1 Ret 3 Ret 1 1 1 1 201 3 Tetsuya Harada Aprilia 4 1 DSQ 3 1 1 Ret 2 1 1 10 2 Ret Ret 200 4 Tohru Ukawa Honda Ret 2 4 7 Ret 2 5 4 Ret 5 4 5 5 4 145 5 Olivier Jacque Honda 5 3 3 Ret 4 Ret Ret Ret 5 4 3 3 112 6 Haruchika Aoki Honda 11 4 6 6 6 Ret 3 5 Ret 6 6 7 8 Ret 112 7 Stefano Perugini Honda 12 6 7 5 5 Ret Ret 3 Ret 11 3 6 6 Ret 102 8 Takeshi Tsujimura Yamaha 15 11 8 12 9 7 7 8 6 8 9 10 12 11 91 9 Jeremy McWilliams TSR-Honda 10 7 Ret Ret 7 9 12 7 2 4 Ret Ret Ret 6 87 10 Luis D'Antin Yamaha DNS Ret 9 9 8 6 4 9 12 12 11 16 7 Ret 74 11 José Luis Cardoso Yamaha 8 10 Ret 8 13 5 Ret 10 7 10 12 Ret Ret Ret 61 12 Roberto Rolfo TSR-Honda Ret 12 13 Ret 14 10 10 12 11 15 8 8 13 5 61 13 Jason Vincent TSR-Honda 19 14 Ret Ret 10 8 8 6 5 7 15 11 Ret 60 14 Luca Boscoscuro TSR-Honda 18 Ret 11 10 Ret Ret 9 DNS 8 9 7 12 10 10 58 15 Marcellino Lucchi Aprilia 5 1 3 Ret Ret 52 16 Noriyasu Numata Suzuki 9 12 14 Ret Ret Ret 11 11 9 14 14 13 9 7 52 17 Jürgen Fuchs Aprilia 17 8 Ret Ret 12 4 2 Ret DNS 45 18 Franco Battaini Yamaha Ret Ret 12 11 11 DNS 13 13 9 Ret 9 34 19 Shinya Nakano Yamaha 2 4 33 20 Daijiro Kato Honda 1 25 21 Johan Stigefelt Suzuki Ret Ret Ret DNS Ret 12 15 13 Ret 16 21 15 11 8 22 22 Sebastián Porto Aprilia Ret 9 Ret Ret Ret Ret 6 DNS Ret Ret Ret Ret Ret Ret 17 23 Naoki Matsudo Yamaha 3 16 24 Osamu Miyazaki Yamaha 14 15 10 Ret Ret DNS 18 18 14 15 14 14 25 Davide Bulega Honda 20 Ret Ret 14 11 ERP-Honda 16 14 17 DNS 13 20 16 Ret Ret 12 26 Yukio Kagayama Suzuki 6 10 27 Yasumasa Hatakeyama Honda Ret Ret 16 17 20 17 14 Ret 9 ERP-Honda 13 Ret 13 16 15 DNS 28 Ivan Clementi Yamaha 11 14 Ret Ret 7 29 Alex Hofmann Honda 10 6 30 William Costes Honda DNS Ret 15 16 Ret Ret 13 14 Ret 6 31 Choujun Kameya Suzuki 13 3 32 Diego Giugovaz Aprilia 17 18 13 3 33 Jamie Robinson Yamaha 16 14 2 34 Federico Gartner Aprilia Ret 16 18 15 Ret 16 WD Ret Ret 24 Ret 19 17 1 35 Julien Allemand Honda 15 17 WD 1 36 Ismael Bonilla Honda 17 15 1 37 Mike Baldinger Honda 15 1 38 Woolsey Coulter Honda Ret 15 1 Matthieu Lagrive Honda DNS 19 22 19 18 16 0 Makoto Tamada Honda 16 0 Shaun Geronimi Yamaha 16 0 Shahrol Yuzy Yamaha 17 0 Vincent Philippe Honda 17 0 David Horton Honda 17 0 Franck Poulle Honda 18 0 Jarno Janssen Honda 18 0 Shane Norval Honda 18 0 Diego Ruabén Honda 18 0 Maurice Bolwerk Honda 19 0 Igor Antonelli Aprilia 19 0 Leandro Mulet Yamaha 19 0 Rudie Markink Honda 20 0 David García Honda 20 0 Craig Frederickson Honda 20 0 Gabriel Borgmann Yamaha 20 0 André Romein Honda 21 0 Vladimír Častka ERP-Honda 21 0 Lucas Oliver Bultó Honda 21 0 Radomil Rous Yamaha 22 0 David Ortega Honda 22 0 Filippo Cotti Honda 23 0 Eustaquio Gavira Honda Ret Ret 0 Agustín Escobar Honda Ret 0 Hervé Mora Aprilia Ret 0 Alex Debón Honda Ret 0 Gary May Aprilia Ret 0 Paul Jones Aprilia Ret 0 Callum Ramsay Honda Ret 0 Markus Ober Honda Ret 0 Mathias Neukirchen Aprilia Ret 0 Adrian Schmidt Honda Ret 0 Iván Silva Honda Ret 0 William Strugnell Honda Ret 0 Matías Ríos Yamaha Ret 0 Martin Craggill Aprilia DNS 0 Manuel Luque Yamaha DNQ 0 José David de Gea Yamaha DNQ 0 Henk van de Lagemaat Honda DNQ 0 Lukáš Vavrečka Honda DNQ 0 Lars Langer Yamaha DNQ 0 Adam Brunskill Yamaha DNQ 0 Pos. Rider Bike JPN MAL ESP ITA FRA MAD NED GBR GER CZE IMO CAT AUS ARG Pts

Colour Result Gold Winner Silver Second place Bronze Third place Green Points finish Blue Non-points finish Non-classified finish (NC) Purple Retired (Ret) Red Did not qualify (DNQ) Did not pre-qualify (DNPQ) Black Disqualified (DSQ) White Did not start (DNS) Withdrew (WD) Race cancelled (C) Blank Did not practice (DNP) Did not arrive (DNA) Excluded (EX) Bold – Pole position Italics – Fastest lap

125cc

^[6]

Scoring system

Points were awarded to the top fifteen finishers. A rider had to finish the race to earn points.

• Riders marked with light blue background were eligible for Rookie of the Year award.

Pos Rider Bike JPN MAL ESP ITA FRA MAD NED GBR GER CZE IMO CAT AUS ARG Pts 1 Kazuto Sakata Aprilia 1 6 1 4 1 4 2 1 7 2 4 9 4 5 229 2 Tomomi Manako Honda 2 3 2 1 Ret Ret 3 Ret 1 Ret 1 1 2 1 217 3 Marco Melandri Honda 10 Ret 10 2 2 2 1 4 13 1 2 8 3 2 202 4 Masao Azuma Honda 3 9 4 9 3 Ret 10 Ret Ret Ret 3 3 1 4 135 5 Lucio Cecchinello Honda 4 12 Ret Ret 5 1 4 6 DNS 3 Ret 4 7 3 130 6 Mirko Giansanti Honda Ret 2 3 Ret Ret Ret 6 2 Ret 4 Ret 2 12 6 113 7 Masaki Tokudome Aprilia 8 4 12 10 8 9 5 5 9 Ret 5 13 16 8 97 8 Gianluigi Scalvini Honda 6 13 8 3 Ret 5 Ret 9 Ret 5 12 10 9 10 89 9 Roberto Locatelli Honda Ret 5 Ret Ret 4 Ret 7 Ret 3 8 7 5 6 Ret 87 10 Frédéric Petit Honda 11 7 11 8 6 8 8 8 DNS 10 11 15 14 13 78 11 Youichi Ui Yamaha Ret Ret 7 5 11 7 12 3 Ret Ret 6 Ret 5 15 76 12 Arnaud Vincent Aprilia 20 10 14 11 12 Ret 16 11 2 6 9 12 Ret 7 72 13 Noboru Ueda Honda Ret 1 5 7 Ret 6 18 9 62 14 Ivan Goi Aprilia 15 15 Ret 13 9 Ret 14 10 11 9 10 11 11 11 53 15 Hiroyuki Kikuchi Honda 7 3 13 15 4 7 DNS 52 16 Yoshiaki Katoh Yamaha 12 17 Ret 19 10 11 Ret Ret 6 15 8 7 Ret 14 45 17 Steve Jenkner Aprilia Ret 11 16 14 7 10 9 Ret 8 11 14 16 15 17 45 18 Gino Borsoi Aprilia Ret Ret 9 6 Ret 16 11 7 Ret 14 Ret 20 10 12 43 19 Ángel Nieto Jr. Aprilia 13 8 13 Ret Ret 6 17 12 10 12 Ret 18 13 Ret 41 20 Jaroslav Huleš Honda Ret 14 6 Ret Ret 12 15 Ret Ret Ret Ret 19 8 18 25 21 Emilio Alzamora Aprilia 21 16 Ret 17 Ret Ret Ret 14 5 Ret 13 14 21 DNS 18 22 Nobuyuki Osaki Yamaha 5 11 23 Juan Enrique Maturana Yamaha 16 Ret Ret 18 14 15 19 16 12 13 16 Ret 17 16 10 24 Takashi Akita Yamaha 9 7 25 Paolo Tessari Aprilia 19 18 18 12 15 5 26 Jerónimo Vidal Aprilia 19 16 13 Ret 20 Ret Ret Ret Ret Ret Ret 3 27 Álvaro Molina Honda Ret 13 25 3 28 Federico Cerroni Aprilia Ret 18 13 17 Ret 18 DNS Ret 3 29 Fonsi Nieto Aprilia 15 14 17 3 30 Kazuhiro Takao Honda 14 2 31 Andrea Iommi Honda Ret 16 18 21 18 14 16 19 24 22 Ret 2 32 Claudio Cipriani Aprilia 15 1 33 Christian Manna Yamaha Ret Ret Ret Ret Ret Ret Ret Ret 15 17 DNS Ret 1 34 Andrea Zappa Honda 15 1 Pos. Rider Bike JPN MAL ESP ITA FRA MAD NED GBR GER CZE IMO CAT AUS ARG Pts

Colour Result Gold Winner Silver Second place Bronze Third place Green Points finish Blue Non-points finish Non-classified finish (NC) Purple Retired (Ret) Red Did not qualify (DNQ) Did not pre-qualify (DNPQ) Black Disqualified (DSQ) White Did not start (DNS) Withdrew (WD) Race cancelled (C) Blank Did not practice (DNP) Did not arrive (DNA) Excluded (EX) Bold – Pole position Italics – Fastest lap

Manufacturers' standings

500cc

^[7]

Pos.	Manufacturer	JPN	MAL	ESP	ITA	FRA	MAD	NED	GBR	GER	CZE	IMO	CAT	AUS	ARG	Pts
1	Honda	1	1	1	1	1	1	1	2	1	1	1	1	1	1	345
2	Yamaha	3	7	6	6	6	2	3	1	5	5	5	3	2	4	198
3	Suzuki	6	6	8	8	8	4	7	7	10	12	9	11	6	12	111
4	Modenas KR3	11	9	9	11	12	10	12	Ret	6	10	14	10	10	11	73
5	MuZ	12	DNS		18	Ret	14	Ret	Ret	13	14	Ret	Ret		Ret	11
	Paton				Ret							Ret	16			0
Pos.	Manufacturer	JPN	MAL	ESP	ITA	FRA	MAD	NED	GBR	GER	CZE	IMO	CAT	AUS	ARG	Pts

250cc

^[8]

Pos.	Manufacturer	JPN	MAL	ESP	ITA	FRA	MAD	NED	GBR	GER	CZE	IMO	CAT	AUS	ARG	Pts
1	Aprilia	4	1	1	1	1	1	1	1	1	1	1	1	1	1	338
2	Honda	1	2	3	5	4	2	3	3	10	5	3	4	3	3	215
3	Yamaha	2	10	8	8	8	5	4	8	6	8	9	9	4	9	134
4	TSR-Honda	10	7	11	10	7	8	8	6	2	4	7	8	10	5	128
5	Suzuki	6	13	14	Ret	Ret	12	11	11	9	14	14	13	9	7	59
6	ERP Honda				13	16	13	16	15	13	20	16	Ret	Ret	12	14
Pos.	Manufacturer	JPN	MAL	ESP	ITA	FRA	MAD	NED	GBR	GER	CZE	IMO	CAT	AUS	ARG	Pts

125cc

Pos.	Manufacturer	JPN	MAL	ESP	ITA	FRA	MAD	NED	GBR	GER	CZE	IMO	CAT	AUS	ARG	Pts
1	Honda	2	1	2	1	2	1	1	2	1	1	1	1	1	1	330
2	Aprilia	1	4	1	4	1	4	2	1	2	2	4	9	4	5	243
3	Yamaha	5	17	7	5	10	7	12	3	6	13	6	7	5	14	111
	EGA Honda							22								0
Pos.	Manufacturer	JPN	MAL	ESP	ITA	FRA	MAD	NED	GBR	GER	CZE	IMO	CAT	AUS	ARG	Pts

^[9]