| Grand Prix: | Czechoslovak |
| Flag: | Czechoslovakia |
| Location: | Brno |
| Course Mi: | 6.785 |
| Course Km: | 10.920 |
| Race No: | 12 |
| Season No: | 13 |
| Official Name: | Grand Prix ČSSR |
| Date: | 27 August |
| Year: | 1978 |
| Pole Rider 350: | Kork Ballington |
| Pole Rider 350 Country: | South Africa |
| Pole Rider 350 Country Flag Suffix: | 1928 |
| Pole Rider 350 Bike: | Kawasaki |
| Pole Time 350: | 3:55.79 |
| Fast Rider 350: | Kork Ballington |
| Fast Rider 350 Country: | South Africa |
| Fast Rider 350 Country Flag Suffix: | 1928 |
| Fast Rider 350 Bike: | Kawasaki |
| Fast Time 350: | 3:54.33 |
| First Rider 350: | Kork Ballington |
| First Rider 350 Country: | South Africa |
| First Rider 350 Country Flag Suffix: | 1928 |
| First Rider 350 Bike: | Kawasaki |
| Second Rider 350: | Gregg Hansford |
| Second Rider 350 Country: | Australia |
| Second Rider 350 Bike: | Kawasaki |
| Third Rider 350: | Michel Rougerie |
| Third Rider 350 Country: | France |
| Third Rider 350 Bike: | Yamaha |
| Pole Rider 250: | Kork Ballington |
| Pole Rider 250 Country: | South Africa |
| Pole Rider 250 Country Flag Suffix: | 1928 |
| Pole Rider 250 Bike: | Kawasaki |
| Pole Time 250: | 4:04.40 |
| Fast Rider 250: | Kork Ballington |
| Fast Rider 250 Country: | South Africa |
| Fast Rider 250 Country Flag Suffix: | 1928 |
| Fast Rider 250 Bike: | Kawasaki |
| Fast Time 250: | 4:03.17 |
| First Rider 250: | Kork Ballington |
| First Rider 250 Country: | South Africa |
| First Rider 250 Country Flag Suffix: | 1928 |
| First Rider 250 Bike: | Kawasaki |
| Second Rider 250: | Gregg Hansford |
| Second Rider 250 Country: | Australia |
| Second Rider 250 Bike: | Kawasaki |
| Third Rider 250: | Mario Lega |
| Third Rider 250 Country: | Italy |
| Third Rider 250 Bike: | Morbidelli |
| Pole Rider 50: | Ricardo Tormo |
| Pole Rider 50 Country: | Spain |
| Pole Rider 50 Country Flag Suffix: | 1977 |
| Pole Rider 50 Bike: | Bultaco |
| Pole Time 50: | 4:50.65 |
| Fast Rider 50: | Ricardo Tormo |
| Fast Rider 50 Country: | Spain |
| Fast Rider 50 Country Flag Suffix: | 1977 |
| Fast Rider 50 Bike: | Bultaco |
| Fast Time 50: | 4:48.65 |
| First Rider 50: | Ricardo Tormo |
| First Rider 50 Country: | Spain |
| First Rider 50 Country Flag Suffix: | 1977 |
| First Rider 50 Bike: | Bultaco |
| Second Rider 50: | Claudio Lusuardi |
| Second Rider 50 Country: | Italy |
| Second Rider 50 Bike: | Bultaco |
| Third Rider 50: | Henk van Kessel |
| Third Rider 50 Country: | Netherlands |
| Third Rider 50 Bike: | Sparton |
| Pole Rider Sidecar: | Werner Schwärzel |
| Pole Rider Sidecar Country: | West Germany |
| Pole Rider Sidecar Bike: | Fath |
| Pole Passenger Sidecar: | Andreas Huber |
| Pole Passenger Sidecar Country: | West Germany |
| Pole Time Sidecar: | 4:06.68 |
| Fast Rider Sidecar: | Alain Michel |
| Fast Rider Sidecar Country: | France |
| Fast Rider Sidecar Bike: | Seymaz-Yamaha |
| Fast Passenger Sidecar: | Stu Collins |
| Fast Passenger Sidecar Country: | UK |
| Fast Time Sidecar: | 4:10.24 |
| First Rider Sidecar: | Alain Michel |
| First Rider Sidecar Country: | France |
| First Passenger Sidecar: | Stu Collins |
| First Passenger Sidecar Country: | UK |
| First Rider Sidecar Bike: | Seymaz-Yamaha |
| Second Rider Sidecar: | Rolf Biland |
| Second Rider Sidecar Country: | Switzerland |
| Second Passenger Sidecar: | Kenny Williams |
| Second Passenger Sidecar Country: | UK |
| Second Rider Sidecar Bike: | TTM-Yamaha |
| Third Rider Sidecar: | Dick Greasley |
| Third Rider Sidecar Country: | UK |
| Third Passenger Sidecar: | Gordon Russell |
| Third Passenger Sidecar Country: | UK |
| Third Rider Sidecar Bike: | Busch-Yamaha |
The 1978 Czechoslovak motorcycle Grand Prix was the twelfth round of the 1978 Grand Prix motorcycle racing season. It took place on 27 August 1978 at the Brno circuit.
| Pos | Rider | Manufacturer | Laps | Time | Grid | Points | |
|---|---|---|---|---|---|---|---|
| 1 |  Kork Ballington | Kawasaki | 13 | 51:22.59 | 1 | 15 | |
| 2 |  Gregg Hansford | Kawasaki | 13 | +2.32 | 4 | 12 | |
| 3 |  Michel Rougerie | Yamaha | 13 | +18.43 | 2 | 10 | |
| 4 | Jon Ekerold | Yamaha | 13 | +28.96 | 6 | 8 | |
| 5 |  Paolo Pileri | Morbidelli | 13 | +32.18 | 3 | 6 | |
| 6 |  Takazumi Katayama | Yamaha | 13 | +33.24 | 17 | 5 | |
| 7 | Anton Mang | Kawasaki | 13 | +35.70 | 15 | 4 | |
| 8 |  Tom Herron | Yamaha | 13 | +40.43 | 9 | 3 | |
| 9 |  Pentti Korhonen | Yamaha | 13 | +50.13 | 5 | 2 | |
| 10 | Raymond Roche | Yamaha | 13 | +50.59 | 7 | 1 | |
| 11 | Guy Bertin | Yamaha | 13 | +1:26.54 | 16 | ||
| 12 | Olivier Chevallier | Yamaha | 13 | +1:37.59 | 8 | ||
| 13 |  Bruno Kneubühler | Yamaha | 13 | +1:55.60 | 11 | ||
| 14 | Adelio Faccioli | Yamaha | 13 | +2:08.82 | 18 | ||
| 15 | Harald Merkl | Yamaha | 13 | +2:24.23 | |||
| 16 | Seppo Rossi | Yamaha | 13 | +3:12.77 | |||
| 17 | Jean-Claude Hogrel | Yamaha | 13 | +3:15.62 | |||
| 18 |  Edi Stöllinger | Yamaha | 13 | +3:16.10 | |||
| 19 |  Carlos Lavado | Yamaha | 13 | +6:49.57 | |||
| 20 | Y. Matsumoto | Yamaha | 12 | +1 lap | |||
| 21 | Michael Schmid | Yamaha | 12 | +1 lap | |||
| 22 |  K. Johansson | Yamaha | 12 | +1 lap | |||
| Franco Uncini | Yamaha | 10 | |||||
 Richard Hubin | Yamaha | 12 | |||||
| Patrick Fernandez | Yamaha | 13 | |||||
| Vic Soussan | Yamaha | 14 | |||||
| Sauro Pazzaglia | Yamaha | 19 | |||||
| Roland Freymond | Yamaha | 20 | |||||
| 40 starters in total | |||||||
| [1] | |||||||
| Pos | Rider | Manufacturer | Laps | Time | Grid | Points | |
|---|---|---|---|---|---|---|---|
| 1 | Kork Ballington | Kawasaki | 11 | 45:18.37 | 1 | 15 | |
| 2 | Gregg Hansford | Kawasaki | 11 | +16.24 | 3 | 12 | |
| 3 | Mario Lega | Morbidelli | 11 | +22.41 | 10 | 10 | |
| 4 | Patrick Fernandez | Yamaha | 11 | +31.09 | 7 | 8 | |
| 5 | Jon Ekerold | Yamaha | 11 | +31.37 | 5 | 6 | |
| 6 | Raymond Roche | Yamaha | 11 | +1:10.83 | 16 | 5 | |
| 7 | Vic Soussan | Yamaha | 11 | +1:16.36 | 15 | 4 | |
| 8 | Walter Villa | Harley-Davidson | 11 | +1:19.66 | 18 | 3 | |
| 9 | Franco Uncini | Yamaha | 11 | +1:27.88 | 9 | 2 | |
| 10 | Anton Mang | Kawasaki | 11 | +1:32.44 | 14 | 1 | |
| 11 | Guy Bertin | Yamaha | 11 | +1:33.15 | 17 | ||
| 12 | Edi Stöllinger | Kawasaki | 11 | +1:34.23 | 20 | ||
| 13 | Marc Fontan | Yamaha | 11 | +1:34.77 | 19 | ||
| 14 | Jacques Cornu | Yamaha | 11 | +2:06.73 | |||
| 15 | Olivier Chevallier | Yamaha | 11 | +2:07.32 | 6 | ||
| 16 | Grunwald Harfmann | Yamaha | 11 | +2:12.01 | 11 | ||
| 17 | Dave Hickman | Jawa | 11 | +2:12.57 | |||
| 18 | Bernd Tügethal | Yamaha | 11 | +2:21.48 | |||
| 19 | Seppo Rossi | Yamaha | 11 | +2:22.01 | |||
| 20 | Harald Merkl | Yamaha | 11 | +2:30.92 | |||
| 21 | Giovanni Pellettier | Yamaha | 11 | +2:43.95 | |||
| 22 | T. Laurens | Yamaha | 11 | +2:55.32 | |||
| 23 | Karl-Thomas Grässel | Yamaha | 11 | +2:55.79 | |||
| 24 | Eero Hyvärinen | Yamaha | 11 | +3:16.23 | |||
| Paolo Pileri | Morbidelli | 2 | |||||
| Leif Gustafsson | Yamaha | 4 | |||||
| Richard Hubin | Yamaha | 8 | |||||
| Tom Herron | Yamaha | 12 | |||||
| Jean-François Baldé | Kawasaki | 13 | |||||
| 40 starters in total | |||||||
| Pos | Rider | Manufacturer | Laps | Time | Grid | Points | |
|---|---|---|---|---|---|---|---|
| 1 |  Ricardo Tormo | Bultaco | 8 | 38:47.11 | 1 | 15 | |
| 2 | Claudio Lusuardi | Bultaco | 8 | +2:24.29 | 6 | 12 | |
| 3 |  Henk van Kessel | Sparton | 8 | +2:46.19 | 13 | 10 | |
| 4 | Enrico Cereda | DRS | 8 | +2:46.77 | 7 | 8 | |
| 5 | Reiner Scheidhauer | Kreidler | 8 | +2:47.28 | 8 | 6 | |
| 6 | Aldo Pero | Kreidler | 8 | +3:18.51 | 12 | 5 | |
| 7 | Luigi Rinaudo | Tomos | 8 | +3:42.61 | 18 | 4 | |
| 8 | Patrick Plisson | ABF | 8 | +3:50.05 | 17 | 3 | |
| 9 | Zbyned Havrda | Kreidler | 8 | +3:51.59 | 2 | ||
| 10 | Wolfgang Müller | Kreidler | 8 | +4:23.98 | 9 | 1 | |
| 11 | Ingo Emmerich | Kreidler | 8 | +4:24.57 | 11 | ||
| 12 | Cees van Dongen | Kreidler | 8 | +4:36.71 | |||
| 13 | Daniel Corvi | Kreidler | 8 | +4:38.70 | 4 | ||
| 14 | Chris Baert | Kreidler | 8 | +4:51.86 | |||
| 15 | Bruno di Carlo | Kreidler | 8 | +5:11.73 | |||
| 16 | Wolfgang Glawaty | Kreidler | 8 | +5:30.71 | |||
| 17 | Otto Machinek | Kreidler | 7 | +1 lap | |||
| 18 |  Ove Skifjeld | Kreidler | 7 | +1 lap | |||
| 19 |  Henrique Sande | Kreidler | 7 | +1 lap | 5 | ||
| 20 | O. Krmicek | Kreidler | 6 | +2 laps | |||
| Stefan Dörflinger | Kreidler | 2 | |||||
| Eugenio Lazzarini | Kreidler | 3 | |||||
| Hagen Klein | Kreidler | 10 | |||||
| Pierre Dumont | Kreidler | 14 | |||||
| Rolf Blatter | Kreidler | 15 | |||||
| Hans Hummel | Kreidler | 16 | |||||
| Günter Schirnhofer | Kreidler | 19 | |||||
| Theo Timmer | Kreidler | 20 | |||||
| 34 starters in total | |||||||
| Pos | Rider | Passenger | Manufacturer | Laps | Time | Grid | Points | |
|---|---|---|---|---|---|---|---|---|
| 1 | Alain Michel | Stu Collins | Seymaz-Yamaha | 11 | 46:22.09 | 2 | 15 | |
| 2 | Rolf Biland | Kenny Williams | TTM-Yamaha | 11 | +21.11 | 3 | 12 | |
| 3 | Dick Greasley | Gordon Russell | Busch-Yamaha | 11 | +22.27 | 7 | 10 | |
| 4 | Jock Taylor | James Neil | Windle-Yamaha | 11 | +40.14 | 4 | 8 | |
| 5 | Hermann Schmid | Kenny Arthur | Schmid-Yamaha | 11 | +1:15.03 | 8 | 6 | |
| 6 | Max Venus | Norbert Bittermann | CAT-Yamaha | 11 | +1:18.93 | 9 | 5 | |
| 7 | Siegfried Schauzu | Lorenzo Puzo | Busch-Yamaha | 11 | +2:15.02 | 11 | 4 | |
| 8 | Cees Smit | Jan Smit | Seymaz-Yamaha | 11 | +2:21.90 | 3 | ||
| 9 | Amedeo Zini | Andrea Fornaro | Busch-König | 11 | +2:25.37 | 2 | ||
| 10 | Egbert Streuer | Johann van der Kaap | Schmid-Yamaha | 11 | +3:04.12 | 1 | ||
| 11 | Klaus Sprengel | Manfred Kürnsteiner | Suzuki | 11 | +3:26.94 | |||
| 12 | Kurt Jelonek | V. Knapp | König | 11 | +3:47.02 | |||
| 13 | Gerald Corbaz | Roland Gabriel | Schmid-Yamaha | 10 | +1 lap | |||
| 14 | Kalevi Rahko | Kari Laatikäinen | Schmid-Yamaha | 10 | +1 lap | |||
| 15 | Heinz Thevissen | Lothar Klein | HTS-Yamaha | 10 | +1 lap | |||
| 16 | Heinz Luthringhauser | Hermann Hahnn | BMW | 10 | +1 lap | |||
| 17 | Ted Janssen | Dennis Keen | Yamaha | 5 | +6 laps | |||
| Werner Schwärzel | Andreas Huber | Fath | 1 | |||||
| Rolf Steinhausen | Wolfgang Kalauch | Seymaz-Yamaha | 5 | |||||
| Bruno Holzer | Karl Meierhans | LCR-Yamaha | 6 | |||||
| Göte Brodin | B. Gäl-Iros | Yamaha | 10 | |||||
| George O'Dell | Cliff Holland | Seymaz-Yamaha | 12 | |||||
| Hermann Huber | Bernd Schappacher | König | 13 | |||||
| Otto Haller | Rainer Gundel | MKM-Yamaha | 14 | |||||
| Gustav Pape | Franz Kallenberg | König | 15 | |||||
| 30 starters in total | ||||||||