scoring over par, with bogey changing meaning to one-over-par. Scores in excess of one stroke more than par for a hole are known as double-bogey (two strokes more than par, +2), triple-bogey (three strokes more than par, +3), and so on. For higher hole scores it is more common for them to be referred to by the number of strokes, or strokes relative to par, rather than as a "n-tuple bogey". It is considered an achievement to complete a bogey-free round. Completing four bogey-free rounds in professional tournament play is rare. Examples are Lee Trevino at the 1974 Greater New Orleans Open; David J. Russell at the 1992 Lyon Open V33; Jesper Parnevik at the 1995 Volvo Scandinavian Masters; Manuel Piñero at the 2002 GIN Monte Carlo Invitational; Diana Luna at the 2011 UniCredit Ladies German Open; and Jonas Blixt and Cameron Smith at the 2017 Zurich Classic of New Orleans (a team event). Each of them won the tournament except Piñero, who finished third. Birdie A hole score of one stroke fewer than par (one under par, −1) is known as a birdie, e.g. 2 strokes to complete a par 3 hole or 4 strokes on a par 5 hole. This expression was coined in 1899, at the Atlantic City Country Club in Northfield, New Jersey. According to a story that has been passed down, one day in 1899, three golfers, George Crump (who later built Pine Valley Golf Club, about 45 miles away), William Poultney Smith (founding member of Pine Valley), and his brother Ab Smith, were playing together when Crump hit his second shot only inches from the cup on a par-four hole after his first shot had struck a bird in flight. Simultaneously, the Smith brothers exclaimed that Crump's shot was "a bird". Crump's short putt left him one-under-par for the hole, and from that day, the three of them referred to such a score as a "birdie". In short order, the entire membership of the club began using the term. As the Atlantic City Country Club, being a resort, had many out-of-town visitors, the expression spread and caught the fancy of all American golfers. The perfect round (score of 54 on a par-72 course) is most commonly described as scoring a birdie on all 18 holes, but no player has ever recorded a perfect round in a professional tournament. During the 2009 RBC Canadian Open,