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Individual Calculations January 2009 |
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| Datu, Alcon John Total change: -4.00 | |   |
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| 4th Pichay Cup Chess Challenge | Mandaluyong | PHI | 2008-09-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1986 | 2138 | 0.50 | 1 | -0.20 | 25 | -5.00 | |
|  Leysa, Ferdinand | | | 1986 | PHI | 0.50 | 1 | -0.20 | 25 | -5.00 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | World Youth Chess Championships 2008 - Open 16 | Vung Tau | VIE | 2008-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2205 | 2159 | 4.00 | 9 | 0.04 | 25 | 1.00 | |
| | Yilmaz, Mustafa | f | | 2387 | TUR | 0.00 | 1 | -0.21 | 25 | -5.25 | |  Veits, Janis | | | 1809 | LAT | 0.50 | 1 | -0.39 | 25 | -9.75 | | | Kanarek, Marcel | f | | 2458 | POL | 0.50 | 1 | 0.35 | 25 | 8.75 | | | Wageih, Kareim | m | | 2197 | EGY | 0.00 | 1 | -0.45 | 25 | -11.25 | | | Kottahachchy, K O V | | | 2017 | SRI | 1.00 | 1 | 0.31 | 25 | 7.75 | | | Karayev, Assylkhan | | | 2283 | KAZ | 0.00 | 1 | -0.33 | 25 | -8.25 | | | Lee, Kiyul | | | 1952 | KOR | 1.00 | 1 | 0.23 | 25 | 5.75 | | | Thavandiran, Shiyam | f | | 2338 | CAN | 1.00 | 1 | 0.73 | 25 | 18.25 | | | Shyam, Sundar, M | m | | 2402 | IND | 0.00 | 1 | -0.20 | 25 | -5.00 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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