She was one of five up-and-coming New Zealand athletes who left in mid-January to train and compete for a month at Alpine Meadows, Lake Tahoe, mentored by Kiwi Olympian Tim Cafe.
Along with fellow Queenstowners Tully Robinson and Sam Shaw, the St Joseph's School pupil is due back in Queenstown later this week after the end of racing on Monday.
Cameron-Leigh's father, Grant Murphy, said said she had relished the chance to mix it up with her American counterparts and had done herself proud.
"In her last race, out of about 81 kids she came seventh, which is great, especially when you consider about 30 of them were Americans who train fulltime and do home schooling.""She is just loving it and enjoying every bit of the training with Tim Cafe and, with the other girl over there, Tully, they are certainly making the most of it - the improvement is just incredible," said Mr Murphy.
In her first race, Tully placed ninth out of a field of 86, was running fourth in Sunday's race after the first run and finished fifth in Monday's dual slalom race.
Cameron-Leigh took to the snow at the age of 2 and been racing since she was 6, most recently picking up podium placings in last year's K Cup and Interfield Series and national titles in ski-cross and parallel giant slalom racing two years ago.
Mr Murphy said it was too early to tell whether she would return for another northern hemisphere winter next year, with school the first priority once she got home.
"When she gets back it's straight into school and it will probably take a month of just hanging out and being a kid and after Easter, start back up into it again."
