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Individual Calculations September 2019 |
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| Zhang, Yuanchen Total change: 24.80 | |   |
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| 8th Annual Washington International | Rockville, Maryland | USA | 2019-07-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2317 | 2261 | 4.50 | 9 | 0.67 | 20 | 13.40 | |
|  Brodsky, David | m | | 2432 | USA | 0.50 | 1 | 0.23 | 20 | 4.60 | |  Guo, Arthur | m | | 2284 | USA | 1.00 | 1 | 0.53 | 20 | 10.60 | | | Li, Zhaozhi | m | | 2395 | USA | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Mulyar, Michael | m | | 2381 | USA | 0.50 | 1 | 0.16 | 20 | 3.20 | | | Yu, Jennifer | f | wg | 2341 | USA | 0.50 | 1 | 0.11 | 20 | 2.20 | | | Homa, Seth | f | | 2281 | USA | 0.50 | 1 | 0.03 | 20 | 0.60 | | | Wang, Jason | f | | 2293 | USA | 0.00 | 1 | -0.46 | 20 | -9.20 | | | Lehmann, Spencer | | | 2276 | USA | 1.00 | 1 | 0.52 | 20 | 10.40 | | | Tsay, Vincent | f | | 2167 | USA | 0.50 | 1 | -0.13 | 20 | -2.60 | |
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) | | | | 2019 NAYCC U18 Open | Kingston | CAN | 2019-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2226 | 2305 | 6.00 | 9 | 0.57 | 20 | 11.40 | |
| | Xu, Jeffrey | c | | 2067 | CAN | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Ravuri, Vinesh | | | 2192 | USA | 0.50 | 1 | -0.15 | 20 | -3.00 | | | Vettese, Nicholas | f | | 2295 | CAN | 1.00 | 1 | 0.49 | 20 | 9.80 | | | Shen, Christopher | f | | 2325 | USA | 1.00 | 1 | 0.53 | 20 | 10.60 | | | Hua, Eugene | f | | 2303 | CAN | 0.00 | 1 | -0.50 | 20 | -10.00 | | | Li, William | | | 2139 | CAN | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Ouellet, Maili-Jade | | wm | 2211 | CAN | 0.50 | 1 | -0.13 | 20 | -2.60 | | | Huang, Andy | f | | 2263 | USA | 1.00 | 1 | 0.44 | 20 | 8.80 | | | Doknjas, Joshua | c | | 2237 | CAN | 0.00 | 1 | -0.59 | 20 | -11.80 | |
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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