"It's just been the luck of the draw and I've had my fair share," said Murray. "Poor Rob, he's had it worse."
Coley, who was sitting third after December's opening round in Meremere, made national headlines with his spectacular airborne crash up the finishing pool embankment at Shelterview on December 27.
He replaced the hull for the UIM World Series in January, but when coming back for the nationals in Waitara, Coley had problem after problem and managed only one qualifying run, with the lack of practice leading to a rotation error which saw him eliminated in the Top 12.
Therefore, both men need their competition to likewise have some early DNFs to make up the points with three rounds remaining, which Murray as a former Group A national champion knows is always a prospect.
"You never know. I was 12 points behind Sam [Newdick] and we beat him, and that was on one night."
Murray claimed the 2014 Group A title from Hamiltonian Newdick when he made a wrong turn in the opening eliminator of the final round under lights at Shelterview, with Murray going on to win the round and the title.
After this weekend, night action will return to Shelterview on April 9 after being missed last season, with the final round at Featherston on April 24.
Also looking to make up ground at Hastings tomorrow will be the Whanganui competitors in the Group B championship.
Ross Travers in Radioactive got the win in Waitara to move back into contention in third place, although he has a lot of ground to make up on Te Awamutu's Patrick Haden and Owanga's Tim Edhouse.
Meanwhile, after consistent rounds of fifth, fourth and sixth, Two-a-Breast's Donna Thompson sits in fifth position, two points ahead of fellow Whanganui driver and former champion Hayden Wilson in White Noize.