The 1973 USAC Championship Car season consisted of 16 races held from April 7 to November 3, spanning paved ovals and a mix of short tracks and superspeedways. It was one of the most tragic seasons in IndyCar history, overshadowed by multiple fatal accidents — particularly during practice and qualifying for the Indianapolis 500, where two drivers (Art Pollard and Swede Savage) lost their lives, and several others were seriously injured.
Despite the challenges, Roger McCluskey claimed his only USAC National Championship with 3,705 points, driving a McLaren-Offy for the Lindsey Hopkins team. He secured the title through strong consistency rather than dominance, winning just one race that year. Gordon Johncock won the rain-shortened 1973 Indianapolis 500 (called after 133 laps), while other notable winners included Wally Dallenbach (3 wins), Johnny Rutherford (2 wins), and Billy Vukovich II.
The season highlighted both the increasing speeds of the turbocharged era and growing safety concerns that would reshape the sport in the years ahead.
October 6, 1973
