1972 Trans-AMA motocross series

February 2025 250px|thumb|right|Ake Jonsson during Round 3 of the 1972 Trans-AMA in St. Peters, Missouri. The 1972 Trans-AMA motocross series was the third annual international series established by the American Motorcyclist Association as a pilot event to help establish motocross in the United States. The motocross series was an invitational based on a 500cc engine displacement formula, run on American tracks featuring the top riders from the F.I.M. world championship against the top American riders. Swedish Maico factory rider Åke Jonsson dominated the championship, winning nine consecutive overall wins. 500cc world champion, Roger De Coster and Heikki Mikkola placed second and third overall, claiming one victory apiece to start off the series before Jonsson began his winning streak. Brad Lackey was the highest-placing American rider, finishing the series sixth overall. 1972 Trans-AMA rounds RoundDateLocationOverall WinnerTop American 1 24 September Copetown, Ontario BEL Roger De Coster Brad Lackey 2 1 October Linnville, Ohio FIN Heikki Mikkola Bryan Kenney 3 8 October St. Peters, Missouri SWE Åke Jonsson Brad Lackey 4 15 October Atlanta, Georgia SWE Åke Jonsson Jimmy Weinert 5 22 October Orlando, Florida SWE Åke Jonsson Brad Lackey 6 29 October Houston, Texas SWE Åke Jonsson Brad Lackey 7 5 November Carlsbad Raceway SWE Åke Jonsson Brad Lackey 8 12 November Phoenix, Arizona SWE Åke Jonsson Brad Lackey 9 19 November Puyallup, Washington SWE Åke Jonsson Brad Lackey 10 26 November Livermore, California SWE Åke Jonsson Brad Lackey 11 3 December Irvine, California SWE Åke Jonsson Marty TripesSources:Trans-AMA Motocross Records, American Motorcyclist, January 1975, Vol. 29, No. 1, 0277-9358http://akejonsson.com/transama1972.html 1972 Trans-AMA Series results akejonsson.com 15 February 2016 August 7, 2015 https://web.archive.org/web/20150807155833/http://akejonsson.com/transama1972.html bot: unknown 1972 Trans-AMA final standings Pos Rider Machine 1 2 3 4 5 6 7 8 9 10 11 Pts 1 SWE Åke Jonsson Maico 2 4 1 1 1 1 1 1 1 1 1 1550 2 BEL Roger De Coster Suzuki 1 3 2 2 3 3 2 4 912 3 FIN Heikki Mikkola Husqvarna 3 1 2 2 3 3 2 811 4 RFA Hans Maisch Maico 2 3 8 4 8 5 3 530 5 SWE Arne Kring Husqvarna 4 7 3 4 5 2 487 6 USA Brad Lackey Kawasaki 4 10 6 9 6 8 6 7 8 4 9 460 7 SWE Bengt Åberg Husqvarna 5 4 7 2 304 8 NED Pierre Karsmakers Husqvarna 5 10 4 5 7 10 10 303 9 SWE Christer Hammargren Yamaha 2 9 6 7 8 264 10 CZE Miroslav Halm ČZ 5 9 3 7 228 - BEL Jaak van Velthoven Yamaha 6 8 4 6 - - FRA Serge Bacou Bultaco 7 5 9 7 - - USA Gary Jones Yamaha 15 7 12 12 11 10 12 15 9 11 - - USA Mike Runyard Suzuki 5 12 23 8 11 20 12 17 12 12 13 - - USA Rich Thorwaldson Suzuki 8 20 8 4 19 19 14 16 11 13 15 - - USA Jim Pomeroy Bultaco 9 19 5 10 13 13 19 10 18 12 - - USA Bryan Kenney Maico 6 25 6 13 12 11 18 16 14 16 - - USA Mark Blackwell Husqvarna 13 12 13 14 10 17 14 14 15 14 - - USA Jimmy Weinert Yamaha 11 16 3 7 14 22 11 - - USA Gary Chaplin Maico 6 17 21 16 20 13 11 18 - - USA Billy Clements Husqvarna 9 16 14 14 23 16 13 - - UK Andy Roberton Husqvarna 9 6 5 - - USA Wyman Priddy ČZ 8 10 11 17 - - USA Marty Tripes Yamaha 24 20 20 16 8 - ČZ 6 - CZE Jiří Churavý ČZ 9 5 - - UK Dave Bickers ČZ 7 9 - - FIN Seppo Makinen Husqvarna 10 - - JPN Masaharu Takezawa Kawasaki 10 -Sources only document the points awarded to the first ten competitors. Sources:https://vault.racerxonline.com/1972/mx/points 1972 AMA 500cc results racerxonline.com 4 November 2025 References See also 1972 AMA Motocross National Championship season 1972 FIM Motocross World Championship List of Trans-AMA motocross champions Trans-AMA motocross series AMA Motocross Championship Season Category:Trans-AMA motocross series