Due to poor weather and high wind, the event format for the National Championships was adjusted so that a sprint race would be run in the valley.
The field was very strong with many international World Cup athletes using the race as a warm-up to the season proper.
Morrison and Kennedy-Sim were among the standout performers, with Morrison taking home a silver medal and Kennedy-Sim finishing in fifth place.
Grimus finished 28th, Crawford 42nd and Rolls narrowly avoided a crash to finish in 83rd position.
In the Europa Cup event Kennedy-Sim backed up her previous solid performance by taking out fifth place, while Morrison had another outstanding result claiming 12th position, with Grimus 29th, Crawford in 45th and Rolls 63rd.