1973 Tony Bettenhausen 100 USAC National Dirt Championship.jpg
Held on August 19, 1973 at Illinois State Fairgrounds in Springfield, IL
100 L, 100 M, 160.9 KM - Scheduled Distance

RESULTS
Fin St # Driver Sponsor Make Laps Led Status Pts
1 4 15 Mario Andretti King/Ford 100 32 running
2 1 2 Al Unser King/Ford 100 6 running
3 20 70 Bill Puterbaugh Chevy 99 0 running
4 19 4 Tom Bigelow Chevy 99 0 running
5 8 36 Mel Cornett Offenhauser 99 0 running
6 2 98 Johnny Parsons 1972 Watson/Ford 99 62 running
7 10 3 Arnold Knepper Chevy 96 0 running
8 12 9 Sam Sessions Ford 95 0 running
9 25 99 Bob Evans Offenhauser 95 0 running
10 16 64 Billy Engelhart Offenhauser 87 0 magneto
11 6 11 Joe Saldana Offenhauser 85 0 accident
12 22 73 Johnny Rutherford Offenhauser 83 0 water leak
13 24 54 Don Nordhorn Chevy 82 0 out of fuel
14 13 33 Ronnie Burke Chevy 76 0 lost power
15 23 14 Gary Bettenhausen Chevy 70 0 lost power
16 5 65 Jerry Miller Ford 46 0 overheating
17 7 28 Jimmy Caruthers Offenhauser 44 0 piston
18 15 24 Bill Vukovich, Jr. Chevy 41 0 engine
19 14 81 Pancho Carter Offenhauser 39 0 engine
20 18 31 Billy Shuman 1962 Blum/Offenhauser 36 0 magneto
21 17 38 Jigger Sirois Allison 31 0 oil pressure
22 21 16 George Snider Offenhauser 27 0 fuel pump
23 9 1 A.J. Foyt Foyt 26 0 handling
24 11 23 Jim McElreath Chevy 6 0 accident
RACE DATA
Failed to Qualify: Greg Weld
Time of Race: 1h:02:53
Fast Qualifier: Al Unser - 33.31 sec.
Heat Winners: [[Special:FormEdit/Driver/Template:(({HeatWinnersTemplate:))|[[:Template:]]}
Dash Winners: [[Special:FormEdit/Driver/Template:(({DashWinnersTemplate:))|[[:Template:]]}
Consi Winners: [[Special:FormEdit/Driver/Template:(({ConsiWinnersTemplate:))|[[:Template:]]}
Non-Qualifiers Race Winners: [[Special:FormEdit/Driver/Template:(({NonQualWinnersTemplate:))|[[:Template:]]}
Margin of Victory:
Average Speed: 95.415 mph
Cautions: 2 for 11 laps - lap 7-12 (#23 accident turn 3); lap 87-91 (#11 accident turn 1)
Lead Changes: 4 among 3 drivers - Johnny Parsons 1-27, Mario Andretti 28-55, Johnny Parsons 56-90, Al Unser 91-96, Mario Andretti 97-100