# 1980 IMSA GT Championship

The 1980 IMSA GT Series season was the 10th season of the IMSA GT Championship auto racing series. It was a series for GTX class Group 5 cars and GTO and GTU class grand tourer cars. It began February 2, 1980, and ended November 30, 1980, after fourteen rounds.

## Schedule

Not all classes participated in shorter events. Races marked with All had all classes on track at the same time.
| Rnd | Race | Length | Class | Circuit | Date |
| 1 | 24 Hour Pepsi Challenge | 24 Hours | All | Daytona International Speedway | February 2 February 3 |
| 2 | Coca-Cola 12 Hours of Sebring | 12 Hours | All | Sebring International Raceway | March 22 |
| 3 | Road Atlanta Grand Prix | 50 Miles (twice) | GTX/GTO | Road Atlanta | April 12 |
| 3 | Road Atlanta Grand Prix | 45 Minutes | GTU | Road Atlanta | April 12 |
| 4 | Los Angeles Times/Toyota Grand Prix | 5 Hours | All | Riverside International Raceway | April 27 |
| 5 | Datsun Monterey Triple Crown | 45 Minutes | GTU | Laguna Seca Raceway | May 4 |
| 5 | Datsun Monterey Triple Crown | 100 Miles | GTX/GTO | Laguna Seca Raceway | May 4 |
| 6 | Coca-Cola 400 | 45 Minutes | GTU | Lime Rock Park | May 26 |
| 6 | Coca-Cola 400 | 1 Hour 30 Minutes | GTX/GTO | Lime Rock Park | May 26 |
| 7 | Pepsi Grand Prix | 100 Miles | GTO/GTU | Brainerd International Raceway | June 15 |
| 8 | Paul Revere 250 | 250 Miles | All | Daytona International Speedway | July 4 |
| 9 | Datsun's Golden State Challenge | 100 Miles | GTX/GTO | Golden State International Raceway | July 27 |
| 9 | Datsun's Golden State Challenge | 75 Miles | GTU | Golden State International Raceway | July 27 |
| 10 | G.I. Joe's Grand Prix | 100 Miles | GTX/GTO | Portland International Raceway | August 3 |
| 10 | G.I. Joe's Grand Prix | 45 Minutes | GTU | Portland International Raceway | August 3 |
| 11 | Molson Canadian 1000 | 6 Hours | All | Mosport Park | August 17 |
| 12 | Pabst 500 | 500 Miles | All | Road America | August 31 |
| 13 | Grand Prix of Road Atlanta | 45 Minutes | GTU | Road Atlanta | September 21 |
| 13 | Grand Prix of Road Atlanta | 50 Miles (twice) | GTX/GTO | Road Atlanta | September 21 |
| 14 | Championship Finale Daytona GT 250 | 250 Miles | All | Daytona International Speedway | November 30 |

## Season results

| Rnd | Circuit | GTX Winning Team | GTO Winning Team | GTU Winning Team | Results |
| Rnd | Circuit | GTX Winning Drivers | GTO Winning Drivers | GTU Winning Drivers | Results |
| 1 | Daytona | #2 LM Joest Racing | #54 Montura Racing | #62 Koll Motor Sports | Results |
| 1 | Daytona | Reinhold Joest Rolf Stommelen Volkert Merl | Tony Garcia Alberto Vadia Terry Herman | Bill Koll Jim Cook Greg LaCava | Results |
| 2 | Sebring | #6 Dick Barbour Racing | #44 Group 44 | #77 Mandeville Racing | Results |
| 2 | Sebring | Dick Barbour John Fitzpatrick | Bob Tullius Bill Adam | Roger Mandeville Jim Downing Brad Frisselle | Results |
| 3 | Road Atlanta | #95 Whittington Bros. Racing | #99 Full-Time Racing | #7 Racing Beat | Results |
| 3 | Road Atlanta | Bill Whittington | Phil Currin | Walt Bohren | Results |
| 4 | Riverside | #6 Dick Barbour Racing | #54 Montura Racing | #47 Brad Frisselle Racing | Results |
| 4 | Riverside | Dick Barbour John Fitzpatrick | Tony Garcia Terry Herman | Brad Frisselle Yoshimi Katayama | Results |
| 5 | Laguna Seca | #6 Dick Barbour Racing | #54 Montura Racing | #7 Racing Beat | Results |
| 5 | Laguna Seca | John Fitzpatrick | Tony Garcia | Walt Bohren | Results |
| 6 | Lime Rock | #09 Preston Henn | #63 Mendez Racing | #83 Electramotive | Results |
| 6 | Lime Rock | John Paul Sr. John Paul Jr. | Luis Mendez | Don Devendorf | Results |
| 7 | Brainerd | Did not participate | #63 Mendex Racing | #17 Racing Beat | Results |
| 7 | Brainerd | | Luis Mendez | Jeff Kline | Results |
| 8 | Daytona | #6 Dick Barbour Racing | #44 Group 44 | #7 Racing Beat | Results |
| 8 | Daytona | John Fitzpatrick | Bob Tullius | Walt Bohren | Results |
| 9 | Golden State | #6 Dick Barbour Racing | #68 Mendez Racing | #7 Racing Beat | Results |
| 9 | Golden State | John Fitzpatrick | Luis Mendez | Walt Bohren | Results |
| 10 | Portland | #6 Dick Barbour Racing | #68 Mendez Racing | #7 Racing Beat | Results |
| 10 | Portland | John Fitzpatrick | Luis Mendez | Walt Bohren | Results |
| 11 | Mosport | #6 Dick Barbour Racing | #44 JRT Quaker State | #17 Racing Beat | Results |
| 11 | Mosport | John Fitzpatrick Brian Redman | Bob Tullius Bill Adam | John Morton Jeff Kline Walt Bohren | Results |
| 12 | Road America | #18 JLP Racing | #44 Group 44 | #83 Electramotive | Results |
| 12 | Road America | John Paul Sr. John Paul Jr. | Bob Tullius Bill Adam | Don Devendorf Tony Adamowicz | Results |
| 13 | Road Atlanta | #30 MOMO/Electrodyne | #46 DeNarvaez Enterprises | #7 Racing Beat | Results |
| 13 | Road Atlanta | Gianpiero Moretti | Terry Herman | Jeff Kline | Results |
| 14 | Daytona | #30 MOMO/Electrodyne | #4 Group 44 | #32 Alderman Racing | Results |
| 14 | Daytona | Gianpiero Moretti Reinhold Joest | Bill Adam | George Alderman | Results |