- Dutch Grand Prix
- Clark cruises to Zandvoort victory
May 24, 1964: Jim Clark stormed to victory in the Dutch Grand Prix, leading from start to finish and lapping everyone else except for second-placed John Surtees.
- Monaco Grand Prix
- Hill secures back-to-back Monaco wins
May 10, 1964: Graham Hill once again started the grand prix season with a win at Monaco in his BRM, his second in succession.