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Individual Calculations September 2021 |
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| Peng, Shunkai Total change: 14.80 | |   |
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| 37th Annual GM Arnold Denker National Tournament of High School State Champions | Cherry Hill, New Jersey | USA | 2021-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2187 | 2316 | 5.00 | 6 | 1.16 | 20 | 23.20 | |
|  Moore, Eli | | | 1916 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Yaskolko, Maxim | | | 1993 | USA | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Liang, Awonder | g | | 2587 | USA | 0.50 | 1 | 0.33 | 20 | 6.60 | | | Maiti, Milind | | | 2245 | USA | 1.00 | 1 | 0.40 | 20 | 8.00 | | | Amburgy, Ryan | | | 2012 | USA | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Shlyakhtenko, Robert | f | | 2370 | USA | 0.50 | 1 | 0.08 | 20 | 1.60 | | | * 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) | | | | 2021 North American Youth Chess Championships - Open Under 18 | Chicago, Illinois | USA | 2021-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2123 | 2281 | 5.00 | 9 | -1.04 | 20 | -20.80 | |
| | Rama, Vikas | | | 1881 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Moor, Nathaniel | | | 2041 | USA | 0.00 | 1 | -0.80 | 20 | -16.00 | | | Shah, Kai Mahesh | | | 1881 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Atanasov, Anthony | f | | 2196 | CAN | 0.50 | 1 | -0.12 | 20 | -2.40 | | | Reddy, Shreyas C | | | 1881 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Shen, Christopher | f | | 2346 | USA | 0.50 | 1 | 0.09 | 20 | 1.80 | | | Chen, Justin | f | | 2275 | USA | 0.00 | 1 | -0.51 | 20 | -10.20 | | | Talukdar, Rohan | f | | 2341 | CAN | 1.00 | 1 | 0.58 | 20 | 11.60 | | | Li, Eric Yuhan | f | | 2266 | USA | 0.00 | 1 | -0.52 | 20 | -10.40 | | | * 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) | | | | PNWCC FIDE Hybrid Match - PNWCC (USA) vs Bulgaria | Redmond, San Francisco (USA) and Plovdiv, Sofia (BUL) | USA | 2021-08-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2394 | 2281 | 2.00 | 4 | 0.62 | 20 | 12.40 | |
| | Bratanov, Zsivko | m | | 2388 | BUL | 0.50 | 1 | 0.15 | 20 | 3.00 | | | Bratanov, Zsivko | m | | 2388 | BUL | 1.00 | 1 | 0.65 | 20 | 13.00 | | | Kozhuharov, Spas | m | | 2400 | BUL | 0.50 | 1 | 0.16 | 20 | 3.20 | | | Kozhuharov, Spas | m | | 2400 | BUL | 0.00 | 1 | -0.34 | 20 | -6.80 | |
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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