Seven days later, on 26 February 1908, swimming at a swimming carnival in Kalgoorie, Matson broke his own world record by another three and two-fifths seconds, when he swam the distance in three minutes and ten and three-fifths of a second. However, because a surveyor's certificate could not be produced that precisely verified the dimensions of the pool (i.e., the exact length of the swim) the governing body, the New South Wales Amateur Swimming Association, refused to ratify the new record.