"It was a bit crazy, but thankfully he's okay," said Macauley's dad Brad, who is also the owner of V8 Supercars' team Brad Jones Racing.
It was Kiwi James Munro's day though, his first win in the TRS series making up for a less than satisfactory weekend in Invercargill.
"I now have the confidence knowing I can do it [win] and hope there'll be more wins soon," said Munro.
The lack of race craft for some drivers continued in race two that saw only five laps of the scheduled 15 at race pace.
The result was in abeyance for a few hours and after a raft of penalties were handed out, Mardenborough was confirmed as the winner with Rump in second and Orudzhev third.
Sense prevailed over youthful exuberance in race three, where racing incidents were at a minimum and good race craft prevailed.
Rump got off to a flyer through a jump-start, and although he took the chequered flag, was relegated to fourth. Andrew Tang was promoted to first with Mardenborough second and Munro third.