25 week of 1998

Circuit/Rally Championship Date Winers Chassis
Czechia Autodrom Most Historyczna Formuła 1 1998.06.21 Williams FW08B - Cosworth
San Marino Borgo Maggiore Motocrossowe Mistrzostwa Świata 125cc 1998.06.15 Yamaha
France Carole Motocyklowe Mistrzostwa Europy - 125cc 1998.06.21 Honda
Motocyklowe Mistrzostwa Europy - 250cc 1998.06.21 Aprilia
Belgium Circuit de Spa-Francorchamps Formuła Opel Euroseries 1998.06.17 Lotus 17 - Opel
1998.06.17 Lotus 17 - Opel
United Kingdom Donington Park British Superbike Championship 1998.06.21 Yamaha
1998.06.21 Yamaha YZF750
Czechia Loket Motocrossowe Mistrzostwa Świata 500cc 1998.06.21 Husaberg
San Marino Misano World Circuit Marco Simoncelli Superbike World Championship 1998.06.21 Honda RC45
1998.06.21 Honda RC45
Supersport World Championship 1998.06.21 Suzuki
banned country Moscow Russian Formula Three Championship - ASPAS Cup 1998.06.21 Dallara F398 - Renault
United States Portland FedEx Championship Series 1998.06.21 Reynard 98i - Honda
CART Indy Lights Series 1998.06.21 Lola T97/20 - Buick
United States Road Atlanta IMSA GT Championship 1998.06.21 Riley & Scott Mk III - Ford
France Val-de-Vienne French Formula 3 Championship 1998.06.20 Dallara - Renault
1998.06.21 Dallara - Renault
Porsche Carrera Cup France 1998.06.21 Porsche 993
Denmark Vojens – Speedway Center Speedway Grand Prix 1998.06.19
Mexico Zacatecas Mexican Formula Three Championship 1998.06.19 Reynard 993 - Volkswagen
Portugal Baja Portugalia Puchar Świata w rajdach Cross-Country 1998.06.21 Toyota Land Cruiser
China Rajd Chin Asia-Pacific Rally Championship 1998.06.21 Toyota Celica GT-Four
Bulgaria Rajd Hebros European Rally Championship 1998.06.21 Ford Escort WRC