In golf, par is the predetermined number of strokes that a proficient (scratch, or zero handicap) golfer should require to complete a hole, a round (the sum of the pars of the played holes), or a tournament (the sum of the pars of each round). For scoring purposes, a golfer's number of strokes is compared with the par score to determine how much the golfer was either "over par", "under par", or was "even with/equal to par". Holes are generally assigned par values between three and five based on the distance from the teeing ground to the putting green, and occasionally other factors such as terrain and obstacles. A typical 18-hole golf course will have a total par around 72, and a 9-hole par-3 course (where all holes are rated as par 3) will have a total par of 27. Determination of par Par is primarily determined by the playing length of each hole from the teeing ground to the putting green. Holes are generally assigned par values between three and five, which includes a regulation number of strokes to reach the green based on the average distance a proficient golfer hits the ball, and two putts. On occasion, factors other than distance are taken into account when setting the par for a hole; these include altitude, terrain and obstacles that result in a hole playing longer or shorter than its measured distance, e.g. route is significantly uphill or downhill, or requiring play of a stroke to finish short of a body of water before hitting over it. In general, par-3 holes for men will be under from the tee to the green, par-4 holes will be , par-5 holes will be and par-6 holes will be over . For women, par-3 holes will be under from the tee to the green, par-4 holes will be , par-5 holes will be and par-6 holes will be over These boundaries are commonly extended or shortened for elite or non-elite tournament players, who will often encounter par-4 holes of or more; this is often the result of a normal par-5 hole being rated as a par-4 for them. Some golf courses feature par-7 holes, but these are not recognised by the United States Golf Association. Course and tournament scores A golfer's score is compared with the par score. If a course has a par of 72 and a golfer takes 75 strokes