Rating detailed calculation |
The Elo rating system, named after the US physicist and mathematician Arpad Elo, is a method for calculating the relative skill levels of players. The system allows to calculate, from tables, how many games a player is expected to win based on a comparison of his rating to the ratings of his opponents. For example, if the difference in the player's ratings is no more than 3 scores the likelihood of a win or a loss is 0.5 or 50%.
Rating Calculation in Games
Rint players initial rating
Rnew players new rating.
dR difference between players ratings.
K the maximum possible adjustment per game (the K-value) is set at K = 10 for the strongest players (rating of 2400 and higher), K = 15 for the players with the rating lower than 2400 who played no less than 20 games, K = 25 for the novice players.
N points actually scored in the game.
Nexp expected score (taken from the Elo table).
Rnew = Rint + K (N Nexp)
Rating Calculation in Tournaments
To calculate ratings in tournament, a new value is added, Rt simple average of all the tournament participants ratings. dR difference between Rint and Rt.
The Elo Table
dR |
Nexp (Rint >) |
Nexp (Rint <) |
000-003 |
0,50 |
0,50 |
004-010 |
0,51 |
0,49 |
011-017 |
0,52 |
0,48 |
018-025 |
0,53 |
0,47 |
026-032 |
0,54 |
0,46 |
033-039 |
0,55 |
0,45 |
040-046 |
0,56 |
0,44 |
047-053 |
0,57 |
0,43 |
054-061 |
0,58 |
0,42 |
062-068 |
0,59 |
0,41 |
069-076 |
0,60 |
0,40 |
077-083 |
0,61 |
0,39 |
084-091 |
0,62 |
0,38 |
092-098 |
0,63 |
0,37 |
099-106 |
0,64 |
0,36 |
107-113 |
0,65 |
0,35 |
114-121 |
0,66 |
0,34 |
122-129 |
0,67 |
0,33 |
130-137 |
0,68 |
0,32 |
138-145 |
0,69 |
0,31 |
146-153 |
0,70 |
0,30 |
154-162 |
0,71 |
0,29 |
163-170 |
0,72 |
0,28 |
171-179 |
0,73 |
0,27 |
180-188 |
0,74 |
0,26 |
189-197 |
0,75 |
0,25 |
198-206 |
0,76 |
0,24 |
207-215 |
0,77 |
0,23 |
216-225 |
0,78 |
0,22 |
226-235 |
0,79 |
0,21 |
236-245 |
0,80 |
0,20 |
246-256 |
0,81 |
0,19 |
257-267 |
0,82 |
0,18 |
268-278 |
0,83 |
0,17 |
279-290 |
0,84 |
0,16 |
291-302 |
0,85 |
0,15 |
303-315 |
0,86 |
0,14 |
316-328 |
0,87 |
0,13 |
329-344 |
0,88 |
0,12 |
345-357 |
0,89 |
0,11 |
358-374 |
0,90 |
0,10 |
375-391 |
0,91 |
0,09 |
392-411 |
0,92 |
0,08 |
412-432 |
0,93 |
0,07 |
433-456 |
0,94 |
0,06 |
457-484 |
0,95 |
0,05 |
485-517 |
0,96 |
0,04 |
518-559 |
0,97 |
0,03 |
560-619 |
0,98 |
0,02 |
620-734 |
0,99 |
0,01 |
735 è áîëåå |
1,00 |
0,00 |
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Registered players: | 41078 |
Active users: | 103 |
Players online: | 35 |
Teams: | 47 |
Battle games played: | 162783 |
Classic games played: | 253094 |
Current battle games: | 5 |
Current classic games: | 0 |
Battle setups in database: | 63918 |


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