Claim: The 1973 Tasman Series had a total of eight rounds held in New Zealand and Australia.
Evidence: The series, which began on 6 January and ended on 25 February after eight races, was the tenth Tasman Series. The 1973 Tasman Series was a motor racing competition staged in New Zealand and Australia for cars complying with the Tasman Formula. 
New
Zealand Australia 1 Round 8