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1983

6 February 1983 - Daytona 24 Hours - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
9 Porsche 934 009 00030 GTO Wayne Baker (USA)/Jim Mullen (USA)/Bob Garretson (USA) Personalized Autohaus (USA) 9th 4th 52nd 551 laps
07 Porsche 934 930 770 0958 GTO Ludwig Heimrath, Sr (CDN)/Ludwig Heimrath, Jr (CDN) Heimrath Racing (CDN) 67th 36th 23rd 71 laps - Oil Leak

27 February 1983 - Miami GP - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
69 Porsche 934 930 670 0161 GTP Hiram Cruz (MEX) Hiram Cruz (PR) 17th 17th 26th 25 laps

27 February 1983 - GP Miami IMSA GTO - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
91 Porsche 934 930 890 0014 GTO Chester Vincentz (USA) Electrodyne (USA) 12th 12th 19th 32 laps
9 Porsche 934 009 00030 GTO Wayne Baker (USA) Personalized Autohaus (USA) 25th 25th 5th 9 laps - Accident

19 March 1983 - Sebring 12 Hours - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
9 Porsche 934 009 00030 GTO Wayne Baker (USA)/Jim Mullen (USA)/Kees Nierop (CDN) Personalized Autohaus (USA) 1st 1st 15th 231 laps
69 Porsche 934 930 670 0161 GTO Mandy Gonzalez (PR)/Hiram Cruz (MEX) Hiram Cruz Racing (PR) 20th 7th 26th 201 laps

10 April 1983 - Road Atlanta 500 km - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
9 Porsche 934 009 00030 GTO Wayne Baker (USA)/Jim Mullen (USA) Personalized Autohaus (USA) 8th 1st 28th 117 laps
07 Porsche 934 930 770 0958 GTO Ludwig Heimrath, Sr (CDN) Heimrath Racing (CDN) 56th 21st 35th 16 laps - Flat Tyre/Suspension
91 Porsche 934 930 890 0014 GTO Chester Vincentz (USA) Electrodyne (USA) 57th 22nd 45th 15 laps - Accident

24 April 1983 - Riverside 6 Hours - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
9 Porsche 934 009 00030 GTO Wayne Baker (USA)/Jim Mullen (USA)/Kees Nierop (CDN) Personalized Autohaus (USA) 5th 1st 18th 181 laps

1 May 1983 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
9 Porsche 934 009 00030 GTO Wayne Baker (USA) Personalized Autohaus (USA) 9th 5th 12th 47 laps

15 May 1983 - Charlotte 500 km - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
9 Porsche 934 009 00030 GTO Wayne Baker (USA)/Jim Mullen (USA) Personalized Autohaus (USA) 5th 1st 8th 133 laps
91 Porsche 934 930 890 0014 GTO Chester Vincentz (USA)/Dave White (USA) Electrodyne (USA) 8th 4th 12th 132 laps

30 May 1983 - Lime Rock 3 Hours - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
9 Porsche 934 009 00030 GTO Wayne Baker (USA)/Jim Mullen (USA) Personalized Autohaus (USA) 5th 2nd 10th 168 laps

19 June 1983 - Mid-Ohio 6 Hours - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
91 Porsche 934 930 890 0014 GTO Chester Vincentz (USA)/Dave White (USA) Electrodyne (USA) 4th 2nd 12th 199 laps
03 Porsche 934 930 670 0162 GTO Werner Frank (USA)/Rick Borlase (USA) Toyota Village (USA) 12th 4th 22nd 190 laps
9 Porsche 934 009 00030 GTO Wayne Baker (USA)/Jim Mullen (USA)/Kees Nierop (CDN) WLB Racing (USA) 24th 8th 13th 166 laps

3 July 1983 - Daytona 250 Miles Paul Revere - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
9 Porsche 934 009 00030 GTO Wayne Baker (USA)/Jim Mullen (USA) Wayne Baker Racing (USA) 18th 7th 4th 56 laps

24 July 1983 - Sears Point 3 Hours - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
9 Porsche 934 009 00030 GTO Wayne Baker (USA)/Jim Mullen (USA) Wayne Baker Racing (USA) 8th 3rd 16th 99 laps

31 July 1983 - Trans-Am Road America - Trans-Am

No. Car # Class Drivers Entrant Pos Class Grid Notes
91 Porsche 934 John Klug (USA) John Klug Racing (USA) 27th 42nd 24 laps

31 July 1983 - Portland 3 Hours - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
9 Porsche 934 009 00030 GTO Wayne Baker (USA)/Jim Mullen (USA) Wayne Baker Racing (USA) 5th 3rd 11th 141 laps

14 August 1983 - Mosport 6 Hours - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
07 Porsche 934 930 770 0958 GTO Ludwig Heimrath, Sr (CDN)/Ludwig Heimrath, Jr (CDN) Heimrath Racing (CDN) 16th 5th 8th 161 laps
91 Porsche 934 930 890 0014 GTO Chester Vincentz (USA) Electrodyne (USA) 29th 11th 29th 3 laps - DNF

21 August 1983 - Road America 500 Miles - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
9 Porsche 934 009 00030 GTO Wayne Baker (USA)/Jim Mullen (USA)/Kees Nierop (CDN) Wayne Baker Racing (USA) 18th 5th 9th 98 laps
56 Porsche 934 930 670 0162 GTO Rick Borlase (USA)/Werner Frank (USA) Rick Borlase (USA) 36th 12th 44th 53 laps - DNF

11 September 1983 - Pocono 500 Miles - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
91 Porsche 934 930 890 0014 GTO Chester Vincentz (USA)/Jim Mullen (USA) Electrodyne (USA) 10th 4th 15th 159 laps

27 November 1983 - Daytona Finale 3 Hours - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
07 Porsche 934 930 770 0958 GTO Ludwig Heimrath, Sr (CDN)/Ludwig Heimrath, Jr (CDN) Heimrath Racing (CDN) 44th 14th 15th 65 laps - DNF


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