The circuit in Hořice, where, as he said himself, one curve follows another, was a highlight of his taste. Gustav Havel appeared for the first time at the start in Hořice on 24.6.1962, when the 2nd edition of the race 300 turns was held. He won the 350 cc class on a JAWA 350 OHC motorcycle. A year later, during the 3rd edition, he again won the golden wreath for winning the same class. Gusta didn’t like to remember the 4th edition, he led the race until the last lap, here a motorcycle failure took him out of the race. Nevertheless, he was classified in fifth place because he pushed the motorcycle to the finish. On the ninth lap of the race, he managed to set a best lap time of 2:53.4 minutes, which corresponded to an average speed of over 107 km per hour. This record lasted until 1973.
A year later, he fixed his appetite and won his class of three hundred and fifty again with a start-finish style. Gusta drove as he used to: calmly, stylishly polished and with great insight, F. Št’astný said after the race.
Despite the cold weather, the sixth race was also a winning one for Gusta, although he was chased from the rear positions by František Šťastný on a half-litre Jawa. The latter started with a stronger motorcycle without claiming the classification from the last row.
In 1967 G.Havel and his teammate František Šťastný did not have factory Jawa motorcycles ready. Gustav Havel did not enter Sunday’s race of three hundred and fifty. F.Št’astný finally competed with an older version of the four-stroke ČZ without much result.
In 1967 G.Havel finished the World Championship in 13th place, the National Championship in 3rd place with a ČZ motorcycle, because there were simply no factory Jawa motorcycles. Unfortunately, the next year this popular rider did not appear in Hořice.