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Individual Calculations August 2017 |
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| Jacobson, Aaron Total change: 15.20 | |   |
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| 45th Annual World Open | Philadelphia, Pennsylvania | USA | 2017-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2308 | 2157 | 3.00 | 7 | 0.73 | 40 | 29.20 | |
|  Li, Ruifeng | g | | 2557 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Winkelman, Albert | | | 2028 | AUS | 1.00 | 1 | 0.33 | 40 | 13.20 | | | Rohde, Michael A | g | | 2413 | USA | 0.50 | 1 | 0.31 | 40 | 12.40 | | | Ruiz Castillo, Joshua Daniel | m | | 2367 | COL | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Heimann, Mark A | f | | 2378 | USA | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Gutman, Joshua | | | 2037 | USA | 1.00 | 1 | 0.34 | 40 | 13.60 | | | Sarkar, Justin | m | | 2375 | USA | 0.50 | 1 | 0.28 | 40 | 11.20 | | | * 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 North American Youth Chess Championship - U18 | Morristown, New Jersey | USA | 2017-07-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2162 | 2197 | 4.00 | 8 | -0.35 | 40 | -14.00 | |
| | Tiglon, Bryce | f | | 2357 | USA | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Cardenas, Nicholas | | | 1926 | USA | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Zhang, Yuanchen | f | | 2247 | CAN | 0.00 | 1 | -0.43 | 40 | -17.20 | | | Song, Sam | | | 2182 | CAN | 0.00 | 1 | -0.52 | 40 | -20.80 | | | Zhong, Joey | | | 2050 | CAN | 1.00 | 1 | 0.30 | 40 | 12.00 | | | He, Anthony | f | | 2309 | USA | 0.50 | 1 | 0.15 | 40 | 6.00 | | | Adnan, Habib | | | 1999 | CAN | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Bellissimo, Joseph | | | 2222 | CAN | 0.50 | 1 | 0.03 | 40 | 1.20 | |
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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