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Individual Calculations February 2023 |
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| Van Der Hoorn, Thomas Total change: -111.30 | |   |
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| 2023 New Zealand Championship | Wellington | NZL | 2023-01-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1902 | 1898 | 2.50 | 8 | -1.57 | 30 | -47.10 | |
|  Gong, Daniel Hanwen | f | | 2327 | NZL | 0.00 | 1 | -0.07 | 30 | -2.10 | |  Masters, Andrew D | | | 1833 | SCO | 1.00 | 1 | 0.41 | 30 | 12.30 | | | Rains, Edward | c | | 1977 | NZL | 0.00 | 1 | -0.39 | 30 | -11.70 | | | Liu, William Rui | | | 1760 | NZL | 0.00 | 1 | -0.69 | 30 | -20.70 | | | Davis, Johnathan | | | 1940 | USA | 0.00 | 1 | -0.44 | 30 | -13.20 | | | Metge, J Nigel | | | 1932 | NZL | 0.00 | 1 | -0.45 | 30 | -13.50 | | | Qin, Oscar Shu Xuan | | | 1793 | NZL | 0.50 | 1 | -0.14 | 30 | -4.20 | | | Ha, Timothy Huy Minh | | | 1656 | NZL | 1.00 | 1 | 0.20 | 30 | 6.00 | |
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) | | | | 2023 New Zealand Junior and Age Group Championships | Wellington | NZL | 2023-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1657 | 1898 | 4.00 | 6 | -0.39 | 30 | -11.70 | |
| | Sun, Taoran Ethan | | | 1498 * | NZL | 1.00 | 1 | 0.08 | 30 | 2.40 | | | Hwang, Ryan | | | 1425 | NZL | 1.00 | 1 | 0.05 | 30 | 1.50 | | | Gong, Daniel Hanwen | f | | 2327 | NZL | 0.00 | 1 | -0.07 | 30 | -2.10 | | | Young, Cohen | | | 1835 | NZL | 0.50 | 1 | -0.09 | 30 | -2.70 | | | Lu, Xiahan (luna) | | | 1303 | NZL | 0.50 | 1 | -0.48 | 30 | -14.40 | | | Qi, Jenny | | | 1556 | USA | 1.00 | 1 | 0.12 | 30 | 3.60 | | | * 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) | | | | 2023 Oceania Zonal 3.6 Open | Melbourne | AUS | 2023-01-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1730 | 1898 | 4.50 | 9 | -1.75 | 30 | -52.50 | |
| | Halabe, Adam | | | 1498 * | AUS | 1.00 | 1 | 0.08 | 30 | 2.40 | | | Turner, Jai | | | 1518 | AUS | 1.00 | 1 | 0.09 | 30 | 2.70 | | | Litchfield, Frederick | | | 2119 | AUS | 0.00 | 1 | -0.22 | 30 | -6.60 | | | Daffy, Joseph | | | 1702 | AUS | 0.00 | 1 | -0.75 | 30 | -22.50 | | | Herlihy, Brian | | | 1630 | AUS | 1.00 | 1 | 0.17 | 30 | 5.10 | | | Stolyarov, Michael | | | 1669 | AUS | 1.00 | 1 | 0.21 | 30 | 6.30 | | | Xie, Felix | c | | 2103 | NZL | 0.00 | 1 | -0.24 | 30 | -7.20 | | | Can, Ryan | | | 1658 | AUS | 0.00 | 1 | -0.80 | 30 | -24.00 | | | Li, Jason | | | 1669 | AUS | 0.50 | 1 | -0.29 | 30 | -8.70 | | | * 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) | | |
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