# 1983–84 USAC Championship Car season

The 1983–84 USAC Championship Car season consisted of two races, beginning in Du Quoin, Illinois, on September 5, 1983, and concluding in Speedway, Indiana, on May 27, 1984. The USAC National Champion and Indianapolis 500 winner was Rick Mears. This was the last year that the Championship comprised more than one race, and the Ted Horn Memorial was the last ever Indycar race on a dirt or clay surface.
By this time, the preeminent national championship season was instead sanctioned by CART.

## Schedule and results

All races were run on Oval/Speedway courses.
| Rnd | Date | Race Name | Length | Track | Location | Type | Pole Position | Winning Driver |
| 1 | September 5, 1983 | Ted Horn Memorial | 100 mi (160 km) | DuQuoin State Fairgrounds | Du Quoin, Illinois | Dirt | Gary Bettenhausen | Gary Bettenhausen |
| 2 | May 27, 1984 | Indianapolis 500-Mile Race | 500 mi (800 km) | Indianapolis Motor Speedway | Speedway, Indiana | Paved | Tom Sneva | Rick Mears |

## Final points standings

Note: Drivers not entered for the Indianapolis 500 were not eligible for points.
| Pos | Driver | DQSF | INDY | Pts |
| 1 | Rick Mears | | 1* | 1000 |
| 2 | Roberto Guerrero | | 2 | 800 |
| 3 | Al Unser | | 3 | 700 |
| 4 | Al Holbert | | 4 | 600 |
| 5 | Michael Andretti | | 5 | 500 |
| 6 | Gary Bettenhausen | 1* | DNQ | 400 |
| 7 | A. J. Foyt | | 6 | 400 |
| 8 | George Snider | 4 | 11 | 340 |
| 9 | Bobby Rahal | | 7 | 300 |
| 10 | Ken Schrader | 3 | DNP | 280 |
| 11 | Herm Johnson | | 8 | 250 |
| 12 | Danny Ongais | | 9 | 200 |
| 13 | Josele Garza | | 10 | 150 |
| 14 | Larry Rice | 8 | | 100 |
| 15 | Dennis Firestone | | 12 | 50 |
| 16 | Rich Vogler | 11 | DNP | 40 |
| 17 | Chris Kneifel | | 15 | 25 |
| 18 | Tom Sneva | | 16 | 25 |
| 19 | Bill Vukovich II | 12 | DNP | 20 |
| 20 | Mario Andretti | | 17 | 20 |
| 21 | Scott Brayton | | 18 | 20 |
| 22 | Pancho Carter | | 19 | 20 |
| 23 | Kevin Cogan | | 20 | 20 |
| 24 | Al Unser Jr. | | 21 | 15 |
| 25 | Johnny Rutherford | | 22 | 15 |
| 26 | Dick Simon | | 23 | 15 |
| 27 | Teo Fabi | | 24 | 15 |
| 28 | Sheldon Kinser | 16 | | 10 |
| 29 | Gordon Johncock | | 25 | 10 |
| 30 | Tony Bettenhausen Jr. | | 26 | 10 |
| 31 | Derek Daly | | 27 | 10 |
| 32 | Chip Ganassi | | 28 | 10 |
| 33 | Tom Bigelow | 17 | DNQ | 8 |
| 34 | Steve Chassey | 23 | DNQ | 6 |
| 35 | Danny Sullivan | | 29 | 5 |
| 36 | Spike Gehlhausen | | 31 | 5 |
| 37 | Emerson Fittipaldi | | 32 | 5 |
| 38 | Geoff Brabham | | 33 | 5 |
| 39 | Mark Alderson | 26 | DNP | 4 |
| - | Howdy Holmes | | 13 | 0 |
| - | Tom Gloy | | 14 | 0 |
| - | Patrick Bedard | | 30 | 0 |
| - | Chuck Gurney | 2 | | 0 |
| - | Bill Engelhart | 5 | | 0 |
| - | Steve Kinser | 6 | | 0 |
| - | Ron Shuman | 7 | | 0 |
| - | Ron Burke | 9 | | 0 |
| - | Gary Hieber | 10 | | 0 |
| - | Jerry Nemire | 13 | | 0 |
| - | Bud Wilmot | 14 | | 0 |
| - | Steve Siegel | 15 | | 0 |
| - | Mike Winblad | 18 | | 0 |
| - | Jack Hewitt | 19 | | 0 |
| - | Mike Johnson | 20 | | 0 |
| - | Larry Dickson | 21 | | 0 |
| - | Larry Martin | 22 | | 0 |
| - | Bobby Olivero | 24 | | 0 |
| - | Randy Bateman | 25 | | 0 |
| - | Joe Saldana | 27 | | 0 |
| - | Bob Cicconi | 28 | | 0 |
| - | Jim McElreath | 29 | | 0 |
| - | Rick Hood | 30 | | 0 |
| - | Bill Alsup | | DNQ | 0 |
| - | Chuck Ciprich | | DNQ | 0 |
| - | Jim Crawford | | DNQ | 0 |
| - | Larry Cannon | | DNQ | 0 |
| - | Mike Chandler | | DNQ | 0 |
| - | Phil Caliva | | DNQ | 0 |
| - | Chet Fillip | | DNQ | 0 |
| - | Dick Ferguson | | DNQ | 0 |
| - | Stan Fox | | DNQ | 0 |
| - | Bruno Giacomelli | | DNQ | 0 |
| - | Pete Halsmer | | DNQ | 0 |
| - | Jerry Karl | | DNQ | 0 |
| - | Phil Krueger | | DNQ | 0 |
| - | Steve Krisiloff | | DNQ | 0 |
| - | Al Loquasto | | DNQ | 0 |
| - | Roger Mears | | DNQ | 0 |
| - | Jacques Villeneuve Sr. | | Wth | 0 |
| - | Ed Primm | | DNQ | 0 |
| - | John Paul Jr. | | DNQ | 0 |
| - | Johnny Parsons | DNQ | DNQ | 0 |
| - | Desiré Wilson | | DNQ | 0 |
| - | Jerry Sneva | | DNQ | 0 |
| - | Terry Uehling | DNQ | | 0 |
| - | Steve Cannon | DNQ | | 0 |
| - | Gary Irvin | DNQ | | 0 |
| - | Terry Kawell | DNQ | | 0 |
| - | Larry Gates | DNQ | | 0 |
| - | Randy Kinser | DNQ | | 0 |
| - | Kevin Olson | DNQ | | 0 |
| - | Manny Rockhold | DNQ | | 0 |
| - | Ron Hughes Jr. | DNQ | | 0 |
| - | Eddie Leavitt | DNQ | | 0 |
| - | Steve Long | DNQ | | 0 |
| - | Chuck Jones | DNQ | | 0 |
| - | Jerry Weeks | DNQ | | 0 |
| - | Ron Milton | DNQ | | 0 |
| - | Jim Moughan Jr. | DNQ | | 0 |
| - | Rip Williams | DNQ | | 0 |
| - | Steve Ball | DNQ | | 0 |
| - | Kenny Acheson | | DNP | 0 |
| - | Price Cobb | | DNP | 0 |
| - | John Morton | | DNP | 0 |
| - | Jim Hillyer | | DNP | 0 |
| - | Steve Hostetler | | DNP | 0 |
| - | Bill Puterbaugh | | DNP | 0 |
| - | Jorge Koechlin | | DNP | 0 |
| - | Arie Luyendyk | | DNP | 0 |
| - | Willy T. Ribbs | | DNP | 0 |
| - | Randy Lewis | | DNP | 0 |
| - | Paul Rochelle | | DNP | 0 |
| Color | Result |
| Gold | Winner |
| Silver | 2nd place |
| Bronze | 3rd place |
| Green | 4th & 5th place |
| Light Blue | 6th-10th place |
| Dark Blue | Finished (Outside Top 10) |
| Purple | Did not finish (Ret) |
| Red | Did not qualify (DNQ) |
| Brown | Withdrawn (Wth) |
| Black | Disqualified (DSQ) |
| White | Did not start (DNS) |
| Blank | Did not participate (DNP) |
| Blank | Not competing |
In-line notation :
| Bold | Pole position |
| Italics | Ran fastest race lap |
| * | Led most race laps |
| Rookie of the Year ||
| Rookie ||