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Individual Calculations February 2023 |
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| Sun, Wanyao Sarah Total change: 92.72 | |   |
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| 2023 New Zealand Major Open | Wellington | NZL | 2023-01-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1632 | 1454 | 4.00 | 7 | 2.07 | 38 | 78.66 | |
|  Knightbridge, Wayne | | | 1613 | NZL | 1.00 | 1 | 0.71 | 38 | 26.98 | | | Malcolm, Leo | | | 1656 | NZL | 0.00 | 1 | -0.24 | 38 | -9.12 | |  List, Robert | | | 1576 | NZL | 1.00 | 1 | 0.67 | 38 | 25.46 | | | Paul, David | | | 1527 | NZL | 0.50 | 1 | 0.10 | 38 | 3.80 | | | Barnett-Harris, Lucas | | | 1591 | NZL | 1.00 | 1 | 0.68 | 38 | 25.84 | | | Jackson, L. Ross | | | 1812 | NZL | 0.00 | 1 | -0.10 | 38 | -3.80 | | | Rossiter, Philip E | | | 1647 | NZL | 0.50 | 1 | 0.25 | 38 | 9.50 | |
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 |
| 1368 | 1454 | 0.50 | 2 | -0.68 | 38 | -25.84 | |
| | Liu, Richard Jingjie | | | 1167 | NZL | 0.00 | 1 | -0.84 | 38 | -31.92 | | | Gilmore, Blake | | | 1569 | NZL | 0.50 | 1 | 0.16 | 38 | 6.08 | |
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) | | | | Bob Wade Challengers B | Auckland | NZL | 2023-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1621 | 1454 | 4.00 | 9 | 1.05 | 38 | 39.90 | |
| | Wang, Daniel | | | 1792 | NZL | 1.00 | 1 | 0.88 | 38 | 33.44 | | | Chang, Yolanda | | | 1507 | NZL | 1.00 | 1 | 0.57 | 38 | 21.66 | | | Benson, James | | | 1604 | NZL | 1.00 | 1 | 0.70 | 38 | 26.60 | | | Tang, Tracy | | | 1378 | NZL | 0.00 | 1 | -0.60 | 38 | -22.80 | | | Xu, Luna Yuexiu | | | 1443 | NZL | 0.00 | 1 | -0.52 | 38 | -19.76 | | | Zhang, Charles | | | 1511 | NZL | 0.00 | 1 | -0.42 | 38 | -15.96 | | | Fuatai, Fuatai | | | 1942 | NZL | 0.00 | 1 | -0.04 | 38 | -1.52 | | | Charamova, Jennya | | | 1947 | NZL | 1.00 | 1 | 0.96 | 38 | 36.48 | | | McDonald, Duncan | | | 1469 | NZL | 0.00 | 1 | -0.48 | 38 | -18.24 | |
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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