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ITTF WORLD RANKING BASIC DESCRIPTION

(ITTF 세계랭킹 기본 설명) 

1. BASIC PRINCIPLES
1.1. For each match, the winner gains a certain number of points whilst, at the same
time, points are deducted from the rating of the loser. The number of points won
or lost depends on the relative strength of the two players involved.
1.2. Points are added or deducted in accordance with the Rating points table.
"Expected results" are those of matches where the winner had a higher rating
than the loser. "Unexpected results" are those of matches where the winner
had a lower rating than the loser.
1.3. Wins against unrated players give no points to the winner. When a rated player
loses against an unrated player 10 points are deducted from the rating of the
losing player.
1.4. It has to be noted that these calculations are carried out only on the basis of the
rating points, without taking into account the Bonus Points. 

2. WEIGHTINGS

2.1. Depending on the event, the basic points gained for each win are increased by
multiplying them by a weighting factor.
2.2. The ITTF’s Competition Department has classifies all the events considered for
Ratings into tiers. There are three (3) tiers of events, each with a specific weight
ranging from the normal rate of 1, or 1.5 (points are multiplied by a factor of 1.5)
or 2 (points are multiplied by a factor of 2).
2.3. Weightings for losses are all calculated at the base rate of 1.
2.4. Values in the Rating points table are rounded so as to avoid fractions. 

3. BONUS POINTS

3.1. Bonus Points are generally awarded on the basis of the final positions in
knockout singles events. However, in competitions where alternative formats (to
knockout) are used, up to 16 players may be given bonus points. Additionally,
in the same way as for 3rd place (see table), Bonus Points are awarded
whenever possible when other matches for intermediate positions are played.
3.2. The number of Bonus Points awarded is related to the event. These Bonus
Points remain valid for a period of 12 months only from the date of each Bonus
point earned.
3.3. Bonus Points are not awarded for Team events, U21 events, Qualifying events
or Ranking (Consolation) events. 

4. NEW PLAYERS 

4.1 A player enters the ranking list as soon as he has had at least 2 wins against
already ranked players. He is then given "Starting Points" calculated on basis of
the results available at that moment.
4.2 These "Starting Points" are re-calculated each time a new World Ranking is
produced up to the moment a player reaches or passes the limit of 5 wins and 5
losses against already ranked players, then these "Starting Points" become
final.
4.3 From the time a player enters the ranking list, and before the starting points
become final, a player’s initial rating is capped to the 2nd best win. Often a
player’s losses will result in their calculated starting points less than the 2nd best
win.
Markers for initial ratings
n Before the name of the player, means that this is the first ranking list on which a
player is recorded.
r Before the name of the player, means that on this ranking list his "Starting
Points" have been re-calculated.
f Before the name of the player, means that this is the ranking list on which his
"Starting Points" become final. 

5. DELETED PLAYERS 

5.1 Players who do not have any recorded international results (ITTF Events, ITTF
Recognized Events or ITTF Approved Events) for more than 12 months are
excluded from the published ranking lists. However such players will retain their
rating points until they become active again, meaning that in the interim, they
still have rating points, and these points could still be used for seeding
purposes.
5.2 Players who have no recorded international results for more than 6 months are
marked with an asterisk * before their name.
Competition Department 

January 2012
Tim Gautreau
David Jackson

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Raking points Table