Angourie start Dakoda Walters cruised through his first two heats to move on to the quarter finals in Lennox Head tomorrow.
Rebels halfback McKenzie was on form as his side put in their best team performance of the season.
Grafton were facing tough circumstances with parts of the game going against them but some of their young stars took their chance and made the difference.
The South Grafton Rebels were unstoppable as they piled the tries against the Panthers to seal third place on the ladder.
Grafton Cup winner Ben Looker is looking poised to run another strong race in tomorrow's Maclean Cup to round off the July Carnival.
It's one key man in and one out for the South Grafton Rebels as Welch looks likely to return in place of a big absence from an injury last weekend.
Grafton Tigers' junior Alby Popko lead the charge for the North Coast Force this week as a number of club juniors made their mark at the carnival.
John Shelton's Saxophone took out the closes race of the July Carnival on Grafton Cup Day this afternoon.
Grafton jockey Matthew McGuren claimed two strong results early on Grafton Cup day as he prepares for the Grafton Cup, his dream trophy.
Tuncurry trained Onemore Sapphire won a thrilling race four at Ramornie Race Day this afternoon.