High Quality Content by WIKIPEDIA articles! The 1973 Dutch Grand Prix was a Formula One race held at Zandvoort on July 29, 1973. Zandvoort returned to the Formula 1 calendar following a year`s absence for extensive safety upgrades to the race track including new asphalt, new barriers and a new race control tower. Jackie Stewart won the race, this Grand Prix being fourth of five wins for Stewart during the 1973 Formula One season, and he became the most successful Formula One driver of all time with his 26th Grand Prix victory, surpassing Jim Clark`s record of 25 victories.