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Individual Calculations September 2015 |
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| Zhang, Yuanchen Total change: -79.20 | |   |
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| 2015 North American U20 Open Championships | Kitchener | CAN | 2015-07-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2067 | 2295 | 3.50 | 7 | -1.81 | 40 | -72.40 | |
|  Zhao, Harry | | | 1895 * | CAN | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Lin, Tony (juntao) | | | 2098 | CAN | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Bora, Safal | m | | 2405 | USA | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Hong, Andrew Z | | | 2108 | USA | 0.50 | 1 | -0.24 | 40 | -9.60 | | | Xu, Jeffrey | c | | 1895 * | CAN | 0.50 | 1 | -0.42 | 40 | -16.80 | | | He, Samuel Fei | | | 2083 | USA | 0.50 | 1 | -0.27 | 40 | -10.80 | | | Song, Guannan Terry | | | 1988 | CAN | 0.00 | 1 | -0.86 | 40 | -34.40 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | NOTE: K factor changed | | 4th Annual Washington International - Section A | Rockville, Maryland | USA | 2015-08-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2290 | 2314 | 4.50 | 9 | -0.34 | 20 | -6.80 | |
| | Azarov, Sergei | g | | 2602 | BLR | 0.00 | 1 | -0.16 | 20 | -3.20 | | | Kumar, Aravind | f | | 2180 | USA | 0.50 | 1 | -0.18 | 20 | -3.60 | | | Yu, Jennifer R | | wf | 2193 | USA | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Wheeler, Cameron | f | | 2321 | USA | 0.50 | 1 | 0.01 | 20 | 0.20 | | | Ippolito, Dean | m | | 2389 | USA | 0.50 | 1 | 0.10 | 20 | 2.00 | | | Viswanadha, Kesav | m | | 2366 | USA | 0.00 | 1 | -0.43 | 20 | -8.60 | | | Arjun, Vishnuvardhan | m | | 2199 | IND | 0.50 | 1 | -0.16 | 20 | -3.20 | | | Lowinger, Daniel | | | 2112 | USA | 1.00 | 1 | 0.24 | 20 | 4.80 | | | King, Alexander B | | | 2245 | USA | 0.50 | 1 | -0.10 | 20 | -2.00 | |
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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