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Individual Calculations February 2018 |
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| Collyer, Curt Total change: -29.00 | |   |
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| 27th Annual North American Open | Las Vegas, Nevada | USA | 2017-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2132 | 2250 | 4.00 | 7 | -0.50 | 20 | -10.00 | |
|  Chen, Jonathan | | | 1850 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Samsonkin, Artiom | m | | 2407 | CAN | 0.00 | 1 | -0.29 | 20 | -5.80 | | | Wang, Xiexin | | | 2108 | USA | 0.50 | 1 | -0.19 | 20 | -3.80 | | | Zavortink, Matt | | | 2133 | USA | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Nguyen, Emily | | wm | 2164 | USA | 0.50 | 1 | -0.12 | 20 | -2.40 | | | Huang, Qiuyu | f | | 2155 | CAN | 0.50 | 1 | -0.13 | 20 | -2.60 | | | Easton, Jack | | | 2110 | USA | 0.50 | 1 | -0.19 | 20 | -3.80 | | | * 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) | | | | 2017 Washington State A vs. British Columbia A | Victoria | CAN | 2018-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2184 | 2250 | 2.00 | 5 | -0.95 | 20 | -19.00 | |
| | Cortes Orihuela, Javier | f | | 2251 | CHI | 0.50 | 1 | 0.00 | 20 | 0.00 | | | Doknjas, Joshua | c | | 2222 | CAN | 0.50 | 1 | -0.04 | 20 | -0.80 | | | Doknjas, John | f | | 2186 | CAN | 0.00 | 1 | -0.59 | 20 | -11.80 | | | Kenney, Jason | | | 2154 | CAN | 0.00 | 1 | -0.63 | 20 | -12.60 | | | Wu, Howard | | | 2109 | CAN | 1.00 | 1 | 0.31 | 20 | 6.20 | |
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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