1984 Belgian Grand Prix had 28 drivers one of who was Michele Alboreto who placed first.
Michele Alboreto Derek Warwick Nelson Piquet Jacques Laffite Johnny Cecotto Eddie Cheever Stefan Bellof Martin Brundle Marc Surer Mauro Baldi Philippe Alliot Riccardo Patrese Alain Prost Thierry Boutsen Teo Fabi Ayrton Senna 
