- ...The Hungarian National Tennis Championships is the fourth oldest and longest running tournament of the world.
- ...Juan Martín del Potro and Novak Djokovic are the only people to win a Grand Slam by beating both Rafael Nadal and Roger Federer in the same tournament.
- ...István Gulyás was defeated in the 1966 French Open Men's Final by Tony Roche of Australia (6–1, 6–4, 7–5), after allowing the match to be delayed 24 hours to allow Roche to recover from an ankle injury.
- ...The Hungarian National Tennis Championships is the fourth oldest and longest running tournament of the world.
- ...Juan Martín del Potro and Novak Djokovic are the only people to win a Grand Slam by beating both Rafael Nadal and Roger Federer in the same tournament.
- ...István Gulyás was defeated in the 1966 French Open Men's Final by Tony Roche of Australia (6–1, 6–4, 7–5), after allowing the match to be delayed 24 hours to allow Roche to recover from an ankle injury.