| | Heat | Dash | B Feature | A Feature |
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2/7/1973 | Plant Field - Tampa, FL | Results | Jan Opperman (410 Sprints - Non-Winged) | - | - | - | 1st |
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2/11/1973 | Plant Field - Tampa, FL | Results | Jan Opperman (410 Sprints - Non-Winged) | - | - | - | 1st |
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2/14/1973 | Plant Field - Tampa, FL | Results | Jan Opperman (410 Sprints - Non-Winged) | - | - | - | 3rd |
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2/17/1973 | Plant Field - Tampa, FL | Results | Jan Opperman (410 Sprints - Non-Winged) | - | - | - | 4th |
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4/15/1973 | Williams Grove Speedway - Mechanicsburg, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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4/21/1973 | Selinsgrove Speedway - Selinsgrove, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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4/22/1973 | Williams Grove Speedway - Mechanicsburg, PA 410 Sprints - Winged, Midgets | Results | Jan Opperman (Midgets) | - | - | - | 2nd |
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4/28/1973 | Selinsgrove Speedway - Selinsgrove, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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5/5/1973 | Selinsgrove Speedway - Selinsgrove, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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5/6/1973 | Grandview Speedway - Bechtelsville, PA | Results | Jan Opperman (Midgets) | - | - | - | 1st |
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5/11/1973 | Williams Grove Speedway - Mechanicsburg, PA 410 Sprints - Winged, Midgets | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 2nd |
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5/12/1973 | Selinsgrove Speedway - Selinsgrove, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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5/19/1973 | Selinsgrove Speedway - Selinsgrove, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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5/20/1973 | Hagerstown Speedway - Hagerstown, MD | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 2nd |
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5/25/1973 | Williams Grove Speedway - Mechanicsburg, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 2nd |
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5/26/1973 | Jennerstown Speedway - Jennerstown, PA | Results | Jan Opperman (Silver Crown) | - | - | - | 1st |
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6/1/1973 | Williams Grove Speedway - Mechanicsburg, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 3rd |
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6/2/1973 | Selinsgrove Speedway - Selinsgrove, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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6/8/1973 | Williams Grove Speedway - Mechanicsburg, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 2nd |
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6/9/1973 | Selinsgrove Speedway - Selinsgrove, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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6/16/1973 | Lincoln Speedway - Abbottstown, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 5th |
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6/20/1973 | Wayne County Speedway - Orrville, OH 410 Sprints - Winged: All Star Circuit of Champions | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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6/22/1973 | Williams Grove Speedway - Mechanicsburg, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 5th |
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6/23/1973 | Selinsgrove Speedway - Selinsgrove, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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6/24/1973 | Williams Grove Speedway - Mechanicsburg, PA 410 Sprints - Non-Winged: USAC National Sprint Cars 305 Sprints - Non-Winged | Results | Jan Opperman (305 Sprints - Non-Winged) | - | - | - | 1st |
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6/29/1973 | Williams Grove Speedway - Mechanicsburg, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 2nd |
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6/30/1973 | Selinsgrove Speedway - Selinsgrove, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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7/5/1973 | Wayne County Speedway - Orrville, OH | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 3rd |
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7/11/1973 | Fremont Speedway - Fremont, OH 410 Sprints - Winged: All Star Circuit of Champions | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 3rd |
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7/13/1973 | Williams Grove Speedway - Mechanicsburg, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 2nd |
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7/14/1973 | Selinsgrove Speedway - Selinsgrove, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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7/15/1973 | Penn National Speedway - Grantville, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 2nd |
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7/20/1973 | Williams Grove Speedway - Mechanicsburg, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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8/3/1973 | Williams Grove Speedway - Mechanicsburg, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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8/9/1973 | Knoxville Raceway - Knoxville, IA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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8/11/1973 | Knoxville Raceway - Knoxville, IA 410 Sprints - Winged: All Star Circuit of Champions | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 2nd |
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8/25/1973 | Selinsgrove Speedway - Selinsgrove, PA 410 Sprints - Winged: All Star Circuit of Champions | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 5th |
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8/28/1973 | Michaels Mercer Raceway - Mercer, PA | Results | Jan Opperman (410 Sprints - Non-Winged) | - | - | - | 2nd |
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8/29/1973 | Jennerstown Speedway - Jennerstown, PA 410 Sprints - Winged: All Star Circuit of Champions | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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8/31/1973 | Williams Grove Speedway - Mechanicsburg, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | - |
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9/1/1973 | Selinsgrove Speedway - Selinsgrove, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 3rd |
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9/3/1973 | Selinsgrove Speedway - Selinsgrove, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 3rd |
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9/16/1973 | Williams Grove Speedway - Mechanicsburg, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 3rd |
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9/21/1973 | Reading Fairgrounds - Reading, PA 410 Sprints - Non-Winged: USAC National Sprint Cars 305 Sprints - Non-Winged | Results | Jan Opperman (305 Sprints - Non-Winged) | - | - | - | 20th |
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9/22/1973 | Williams Grove Speedway - Mechanicsburg, PA 410 Sprints - Non-Winged: USAC National Sprint Cars 305 Sprints - Non-Winged | Results | Jan Opperman (305 Sprints - Non-Winged) | - | - | - | 1st |
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9/30/1973 | Williams Grove Speedway - Mechanicsburg, PA 410 Sprints - Winged, Midgets | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 3rd |
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10/7/1973 | Williams Grove Speedway - Mechanicsburg, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 1st |
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10/20/1973 | Williams Grove Speedway - Mechanicsburg, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | - |
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10/21/1973 | Williams Grove Speedway - Mechanicsburg, PA | Results | Jan Opperman (410 Sprints - Winged) | - | - | - | 3rd |
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