1973 Tasman Series
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The 1973 Tasman Series was a motor racing competition staged in New Zealand and Australia[1] for cars complying with the Tasman Formula.[2] The series, which began on 6 January and ended on 25 February after eight races,[1] was the tenth Tasman Series.[3] Officially known as the Tasman Championship for Drivers, it was organised jointly by the Motorsport Association New Zealand Incorporated and the Confederation of Australian Motor Sport.[4] The championship was won by Graham McRae, driving a McRae GM1 Chevrolet.[1]

The series was contested over eight rounds.[1]
| Round[1] | Name[1] | Circuit[1] | Date[1] | Winning driver[1] | Winning car[1] | Winning entrant | Report | |
|---|---|---|---|---|---|---|---|---|
| New Zealand |
1 | New Zealand Grand Prix | Pukekohe | 6 January | Elfin MR5 Repco-Holden | Ansett Team Elfin[5] | Report | |
| 2 | Levin International | Levin | 13 January | McRae GM1 Chevrolet | STP[5] | Report[6] | ||
| 3 | Lady Wigram Trophy | Wigram | 20 January | McRae GM1 Chevrolet | STP[5] | Report[7] | ||
| 4 | Rothmans International[5] | Teretonga | 28 January | McRae GM1 Chevrolet | McKechnie Racing Organisation[5] | Report[8] | ||
| Australia | 5 | Surfers Paradise International | Surfers Paradise | 4 February | Matich A50 Repco Holden | Frank Matich[9] | Report[10] | |
| 6 | Chesterfield 100 | Warwick Farm | 11 February | Chevron B24 Chevrolet | Servis Racing Team[9] | Report[11] | ||
| 7 | Chesterfield 100[9] | Sandown | 18 February | McRae GM1 Chevrolet | STP[9] | Report | ||
| 8 | Chesterfield 100[12] | Adelaide | 25 February | Elfin MR5 Repco-Holden | Ansett Team Elfin[12] | Report[13] | ||