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Individual Calculations February 2019 |
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| Katz, Alexander Total change: 11.10 | |   |
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| 2018 Pan-American Intercollegiate Team Championship | Burlingame, California | USA | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2217 | 2433 | 3.50 | 5 | -0.23 | 10 | -2.30 | |
|  Bharat, Arjun | c | | 2159 | USA | 0.50 | 1 | -0.33 | 10 | -3.30 | |  Matsenko, Sergei | g | | 2524 | RUS | 0.00 | 1 | -0.38 | 10 | -3.80 | | | Vaidya, Atulya | | | 2123 | USA | 1.00 | 1 | 0.14 | 10 | 1.40 | | | Chiang, Sarah | | wf | 2042 | USA | 1.00 | 1 | 0.09 | 10 | 0.90 | | | Itkin, David | | | 2237 | CAN | 1.00 | 1 | 0.25 | 10 | 2.50 | |
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) | | | | Bay Area International | Burlingame, California | USA | 2019-01-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2422 | 2433 | 5.00 | 9 | 0.30 | 10 | 3.00 | |
| | Watson, John | m | | 2203 | USA | 1.00 | 1 | 0.21 | 10 | 2.10 | | | Xiong, Jeffery | g | | 2672 | USA | 0.00 | 1 | -0.20 | 10 | -2.00 | | | Peng, Shunkai | f | | 2285 | CHN | 0.50 | 1 | -0.20 | 10 | -2.00 | | | Banik, Siddharth | | | 2276 | USA | 1.00 | 1 | 0.29 | 10 | 2.90 | | | Le, Quang Liem | g | | 2714 | VIE | 0.50 | 1 | 0.34 | 10 | 3.40 | | | Jacobson, Aaron | f | | 2286 | USA | 0.50 | 1 | -0.20 | 10 | -2.00 | | | Williams, Justus | f | | 2316 | USA | 1.00 | 1 | 0.34 | 10 | 3.40 | | | Negi, Parimarjan | g | | 2656 | IND | 0.00 | 1 | -0.22 | 10 | -2.20 | | | Yoo, Christopher Woojin | f | | 2388 | USA | 0.50 | 1 | -0.06 | 10 | -0.60 | |
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) | | | | 51st Annual Liberty Bell Open | Philadelphia, Pennsylvania | USA | 2019-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2341 | 2433 | 4.00 | 5 | 1.04 | 10 | 10.40 | |
| | Thomforde-Toates, Noah | | | 2033 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Smith, Bryan | g | | 2431 | USA | 0.50 | 1 | 0.00 | 10 | 0.00 | | | Huston, Gus | | | 2149 | USA | 1.00 | 1 | 0.16 | 10 | 1.60 | | | Erenburg, Sergey | g | | 2589 | USA | 0.50 | 1 | 0.21 | 10 | 2.10 | | | Popilski, Gil | g | | 2501 | ISR | 1.00 | 1 | 0.59 | 10 | 5.90 | | | * 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) | | |
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