The following year, still under pressure balloons, Brennwald organized the first edition of the Swiss Indoors in Basel, the winner of which received a wristwatch as a prize. Indoor tennis was reintroduced in Switzerland in 1969 by Roger Brennwald, who organized the Barracuda Challenge tournament under a pressure balloon.
In the pre-open era, the Swiss International Covered Courts, an indoor tennis tournament with the participation of foreign players, was held in Switzerland between 19. Inaugurated in 1970, it is held in October on the indoor hard courts of the St. The Swiss Indoors is a professional men's tennis tournament that is part of the ATP Tour 500 category.
