It took Osborne one heat race to get to grips with the Baypark track and after set-up changes he completed the night with a second behind Waddell in the heat and third in the feature race.
In the annual appearance of the Modifieds the story was the commitment shown by Christchurch racer Luke Keegan.
Leaving home on Friday lunchtime his team made an evening ferry crossing and stayed the night in Wellington before heading to Baypark.
He was scheduled to arrive home again late on Sunday night and the inter-island road trip was rewarded with three wins from three starts in the Boulton Racing Team Lovelady machine and a new lap record each time he hit the track.
After early battles with Auckland's Jamie Fox - the joint New Zealand title-holder with Keegan - in the heat races, he cleared out to win the 20-lap feature, equalling the lap record at 15.33secs on the final lap.
Aucklander Daniel Eggleton won the sprint car feature.