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Individual Calculations April 2023 |
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| Barry, Jacob Total change: -5.60 | |   |
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| ACC Summer Cup 2023 3-7 | Auckland | NZL | 2023-02-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1220 | 1252 | 1.50 | 4 | -0.73 | 20 | -14.60 | |
|  Liu, Zikun Kenneth | | | 1589 | NZL | 0.00 | 1 | -0.12 | 20 | -2.40 | |  Meng, Harrison Xiang Zhi | | | 1055 | NZL | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Li, Yutong | | | 1150 | NZL | 0.50 | 1 | -0.14 | 20 | -2.80 | | | Tai, Ethan | | | 1085 | NZL | 0.00 | 1 | -0.72 | 20 | -14.40 | |
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) | | | | 2023 North Shore Summer Cup 5-7 | Auckland | NZL | 2023-03-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1735 | 1228 | 0.00 | 1 | -0.04 | 20 | -0.80 | |
| | Isaac, Ceferino | | | 1735 | NZL | 0.00 | 1 | -0.04 | 20 | -0.80 | |
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) | | | | Auckland Chess Weekend March 2023 | Auckland | NZL | 2023-03-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1228 | 1228 | 2.00 | 3 | 0.49 | 20 | 9.80 | |
| | Lau, Great Boyou | | | 1028 | NZL | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Powlesland, Brogan | | | 1189 | NZL | 0.00 | 1 | -0.55 | 20 | -11.00 | | | Gaynor, Alan | | | 1466 | NZL | 1.00 | 1 | 0.80 | 20 | 16.00 | |
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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