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Individual Calculations February 2023 |
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| Zhou, Jianchao Total change: -0.30 | |   |
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| 32nd annual North American Open | Paradise, Nevada | USA | 2022-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2302 | 2558 | 6.50 | 9 | -0.46 | 10 | -4.60 | |
|  Nandhakumar, Vaseegaran | | | 1975 | USA | 1.00 | 1 | 0.02 | 10 | 0.20 | |  Zhou, Aiden | | | 2135 | CAN | 0.50 | 1 | -0.43 | 10 | -4.30 | | | Danilyan, Eduard | | | 2158 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Dukic, Zachary | f | | 2270 | CAN | 1.00 | 1 | 0.16 | 10 | 1.60 | | | Mikaelyan, Arman | g | | 2507 | ARM | 0.50 | 1 | -0.07 | 10 | -0.70 | | | Raja, Harshit | g | | 2457 | IND | 0.50 | 1 | -0.14 | 10 | -1.40 | | | Matviishen, Viktor | g | | 2527 | UKR | 0.50 | 1 | -0.04 | 10 | -0.40 | | | Lee, Alice | f | wm | 2292 | USA | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Sethuraman, Sandeep | f | | 2394 | USA | 0.50 | 1 | -0.22 | 10 | -2.20 | | | * 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) | | | | 11th annual Boston Chess Congress - Premier | Boston MA | USA | 2023-01-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2216 | 2550 | 4.00 | 5 | -0.28 | 10 | -2.80 | |
| | Wiebe, Isaac | | | 2150 * | CAN | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Harris, David J | | | 2024 | USA | 1.00 | 1 | 0.03 | 10 | 0.30 | | | Hughes, John Lodger | | | 2215 | IRL | 0.50 | 1 | -0.38 | 10 | -3.80 | | | Poliannikov, Danila | f | | 2263 | USA | 1.00 | 1 | 0.16 | 10 | 1.60 | | | Ivanov, Alexander | g | | 2427 | USA | 0.50 | 1 | -0.17 | 10 | -1.70 | | | * 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) | | | | 55th annual Liberty Bell Open - Major | Philadelphia, PA | USA | 2023-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2324 | 2550 | 4.50 | 5 | 0.71 | 10 | 7.10 | |
| | Jegan, Alan | | | 2150 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Graif, William | f | | 2305 | CAN | 1.00 | 1 | 0.20 | 10 | 2.00 | | | Foisor, Sabina-Francesca | | wg | 2196 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Corrales Jimenez, Fidel | g | | 2501 | USA | 0.50 | 1 | -0.07 | 10 | -0.70 | | | Molner, Mackenzie S | g | | 2467 | USA | 1.00 | 1 | 0.39 | 10 | 3.90 | | | * 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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