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Individual Calculations February 2023 |
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| Young, Cohen Total change: -42.00 | |   |
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| 2023 New Zealand Championship | Wellington | NZL | 2023-01-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1903 | 1835 | 4.00 | 9 | -0.06 | 30 | -1.80 | |
|  Van Riemsdijk, Herman C. | m | | 2265 | BRA | 0.50 | 1 | 0.43 | 30 | 12.90 | |  Hague, Ben | f | | 2381 | NZL | 0.00 | 1 | -0.03 | 30 | -0.90 | | | Yu, Zachary | | | 1719 | NZL | 1.00 | 1 | 0.34 | 30 | 10.20 | | | Tang, Hao | | | 1912 | NZL | 0.00 | 1 | -0.39 | 30 | -11.70 | | | Xing, Zerui | | | 1596 | AUS | 1.00 | 1 | 0.20 | 30 | 6.00 | | | Braganza, Nadia | | wc | 1626 | NZL | 0.00 | 1 | -0.77 | 30 | -23.10 | | | Cummings, Nick | | | 1995 | NZL | 0.00 | 1 | -0.29 | 30 | -8.70 | | | McDougall, Euan | | | 1770 | NZL | 1.00 | 1 | 0.41 | 30 | 12.30 | | | Park-Tamati, Philli | | | 1865 | NZL | 0.50 | 1 | 0.04 | 30 | 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) | | | | 2023 New Zealand Junior and Age Group Championships | Wellington | NZL | 2023-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1837 | 1835 | 3.50 | 5 | 0.95 | 30 | 28.50 | |
| | Chen, Anderson | | | 1435 * | NZL | 1.00 | 1 | 0.08 | 30 | 2.40 | | | Mao, Daqi | | | 1901 | NZL | 0.50 | 1 | 0.09 | 30 | 2.70 | | | Van Der Hoorn, Thomas | | | 1898 | NZL | 0.50 | 1 | 0.09 | 30 | 2.70 | | | Braganza, Nadia | | wc | 1626 | NZL | 1.00 | 1 | 0.23 | 30 | 6.90 | | | Gong, Daniel Hanwen | f | | 2327 | NZL | 0.50 | 1 | 0.46 | 30 | 13.80 | | | * 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) | | | | 2023 Oceania Zonal 3.6 Open | Melbourne | AUS | 2023-01-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1626 | 1835 | 4.50 | 9 | -2.29 | 30 | -68.70 | |
| | Tao, Junqing Jerome | | | 1435 * | NZL | 1.00 | 1 | 0.08 | 30 | 2.40 | | | Liu, Yi | f | | 2303 | AUS | 0.00 | 1 | -0.05 | 30 | -1.50 | | | Gao, James Lequan | | | 1579 | AUS | 0.00 | 1 | -0.81 | 30 | -24.30 | | | Reddy, Ashok | | | 1489 | AUS | 1.00 | 1 | 0.11 | 30 | 3.30 | | | Hernandez Mendez, Iker | | | 1611 | AUS | 1.00 | 1 | 0.22 | 30 | 6.60 | | | Hartley, James | | | 1548 | AUS | 0.00 | 1 | -0.84 | 30 | -25.20 | | | Feng, Angela | | | 1608 | AUS | 0.00 | 1 | -0.79 | 30 | -23.70 | | | Arthur, James | | | 1534 | AUS | 0.50 | 1 | -0.35 | 30 | -10.50 | | | Chang, Ethan | | | 1531 | AUS | 1.00 | 1 | 0.14 | 30 | 4.20 | | | * 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) | | |
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