In the weeks leading up to the first Formula One race of the 1969 season, entries were being announced for the race, with all the teams, apart from Ferrari expected to nominate two drivers for the race. Enzo Ferrari, the managing director of the team he founded, announced that Ferrari were only going to nominate one driver for the race. To most people's surprise, Ferrari at first nominated two drivers for the race without explanation. However, the decision was later changed, with only Chris Amon nominated eventually for Ferrari. Brabham, BRM, Lotus, Matra and McLaren all chose to nominate two drivers for the race meeting.[2]
This was the 100th race for BRM as an engine supplier. In those 100 races, they had won 14 Grands Prix, achieved 56 podiums, 9 pole positions, 12 fastest laps, 2 Grand Slams, and had won 1 Driver's and 1 Constructor's World Championship.