A week later, the fourth Masaryk Circuit had promised a top field, but the entry list was fragmented after the recent events. Scuderia Ferrari had Chiron and Fagioli in the Tipo B again, while Brivio had a Monza. For the twisty circuit, Bugatti sent Dreyfus with a Type 51 (replacing Varzi who had an eye injury), while Mercedes-Benz had an SSKL for von Brauchitsch. The privateers were led by Lehoux and Hartmann in Bugattis, and Moll, Pietsch, Wimille and Balestrero driving the Alfa Romeo Monza. Local hopes were carried by Czech drivers Jan Kubiček and Zdenĕk Pohl. In conjunction with the main class, there was also a voiturette category that brought together Burggaller and Veyron for another contest. They would be challenged by Hugh Hamilton in his little 750cc MG. Sensibly, the organisers declared that once a class winner completed the race, the remaining cars would then be flagged off, rather than having to keep circulating to cover the full distance as was typical for European races.
