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The Quarterly Points Rankings identifies a champion at the end of each quarter and awards points to both the winner and loser of tennis matches played during the period. Four periods are played during the year:
During the period, players accumulate points based on the matches they play. Points can be earned by both the winner and loser as determined by the following formulas:
This promotes activity among players and operates more like a traditional tennis ladder (where players can leap-frog other players by challenging and winning). Quarterly winners will probably play a large number of matches during the quarter against a large number of opponents. Ducking opponents can not be tolerated in Points Rankings because it may hurt a competitor's chance to gain necessary points. Forfeits can be requested if a player refuses to accept and play a challenge within 21 days. In the event of a forfeit, the forfeiting player is eliminated from the quarterly points competition by having their points reset to zero. A player who wins by forfeit does not gain points. At the end of each quarter, points will be reset to level the playing field. Points are not reset to zero. Instead, to give the defending champion and competitors a slight advantage, all points will be divided by ten at the end of the period. In this way, competition will be tightly grouped at the beginning of each period and everybody has a chance to win.
The Polish Tennis Ladder "Power Rankings" uses a points system that ranks people based on their skill, the skill of their opponents, margin of victory, and match victories. Every ladder match played impacts the rankings of both players in opposite ways. Players are given a power rating after they report one match to the World Wide Tennis Ladder. Initially, each member is assigned a number of points and is ranked according to the way in which they judge themselves. Initial rankings use the following scale: Click here for a description of NTRP ratings.
Each ladder match played impacts both players points (one receives additional points and the other loses points). The match offset is calculated using a formula that takes into consideration the initial points rankings of the two players, game differential during the match, and match winner. The loser of the match can improve their standing on the ladder and the winner of the match can drop in the ladder if the match is played closer than expected. The following formula is applied to a match that is best 2 out of 3 sets: {3 + (wg - lg) - (wp - lp)} / 10 wg = Number of Games Winner
won in all sets The loser's offset is the inverse of the winners. For example, assume that player A has 55.00 points and player B has 53.00 points. If player A wins 6-2, 6-2, the match offset for player A is .90 (((12 - 4 + 3) - (55 - 53 )) / 10). The offset for player B is the inverse or -.90 points. Player A's new rank would be 55.90 points and player B's new rank would be 52.10 points. There are a couple of additional rules to insure that a player does not lose inappropriate points. For example, a player winning a match 6-0, 6-0 will not lose a point for that match.
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