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Individual Calculations November 2023 |
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| Barry, Jacob Total change: -8.60 | |   |
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| 74th South Island Chess Championship 2023 | Oamaru | NZL | 2023-09-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1645 | 1325 | 1.00 | 4 | 0.42 | 20 | 8.40 | |
|  Paulsen, Jens | | | 1710 | NZL | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Wang, Justin Zhide | | | 1677 | NZL | 0.00 | 1 | -0.11 | 20 | -2.20 | |  Ashe, Michael | | | 1492 | NZL | 1.00 | 1 | 0.72 | 20 | 14.40 | | | Malcolm, Leo | | | 1699 | NZL | 0.00 | 1 | -0.10 | 20 | -2.00 | |
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) | | | | NSCC Spring B-Grade 2023 3-5 | Auckland | NZL | 2023-10-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1567 | 1292 | 0.00 | 1 | -0.17 | 20 | -3.40 | |
| | Xu, Luna Yuexiu | | | 1567 | NZL | 0.00 | 1 | -0.17 | 20 | -3.40 | |
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) | | | | Merv Morrison Memorial 2023 | Auckland | NZL | 2023-10-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1532 | 1292 | 0.00 | 3 | -0.68 | 20 | -13.60 | |
| | Chang, Yolanda | | | 1689 | NZL | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Sun, Wanyao Sarah | | | 1567 | NZL | 0.00 | 1 | -0.17 | 20 | -3.40 | | | Hooton, Barry R | | | 1341 | NZL | 0.00 | 1 | -0.43 | 20 | -8.60 | |
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) | | |
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