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Individual Calculations August 2021 |
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| Chen, Ryo Wenyu Total change: 38.40 | |   |
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| 14th Annual Philadelphia International - Premier | Philadelphia, Pennsylvania | USA | 2021-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2365 | 2181 | 3.50 | 8 | 1.28 | 40 | 51.20 | |
|  Salinas Herrera, Pablo | g | | 2514 | CHI | 0.50 | 1 | 0.38 | 40 | 15.20 | |  Repka, Christopher | g | | 2496 | SVK | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Jacobson, Aaron | f | | 2301 | USA | 1.00 | 1 | 0.66 | 40 | 26.40 | | | Katz, Alexander Ross | m | | 2398 | USA | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Yu, Jennifer R | f | wg | 2316 | USA | 1.00 | 1 | 0.68 | 40 | 27.20 | | | Escalante, Brian | m | | 2452 | PER | 0.00 | 1 | -0.17 | 40 | -6.80 | | | Hu, Merric | | | 2080 | USA | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Guo, Arthur | m | | 2359 | USA | 0.00 | 1 | -0.27 | 40 | -10.80 | |
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) | | | NOTE: K factor changed | | 49th Annual World Open - Open | Philadelphia, Pennsylvania | USA | 2021-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2171 | 2320 | 5.50 | 9 | -0.64 | 20 | -12.80 | |
| | Zeng, Sheena | | wc | 2013 | USA | 0.00 | 1 | -0.86 | 20 | -17.20 | | | Mbonu, David C | | | 2052 | USA | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Yang, Qindong | | | 2110 | CHN | 0.00 | 1 | -0.77 | 20 | -15.40 | | | Cooke, Eric | | | 2065 | USA | 0.50 | 1 | -0.31 | 20 | -6.20 | | | Sethuraman, Sandeep | | | 2038 | USA | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Li, Hanxiang | | | 2118 | CHN | 1.00 | 1 | 0.24 | 20 | 4.80 | | | O`brien, Matthew J | | | 2156 | USA | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Guo, Arthur | m | | 2470 | USA | 1.00 | 1 | 0.70 | 20 | 14.00 | | | Salinas Herrera, Pablo | g | | 2514 | CHI | 0.00 | 1 | -0.25 | 20 | -5.00 | |
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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