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Individual Calculations February 2023 |
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| McDonald, Duncan Total change: 110.80 | |   |
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| 2023 New Zealand Major Open | Wellington | NZL | 2023-01-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1569 | 1469 | 3.50 | 7 | 0.89 | 40 | 35.60 | |
|  Wells, Clinton A. | | | 1680 | NZL | 0.00 | 1 | -0.23 | 40 | -9.20 | |  Yue, Annie | | | 1257 | NZL | 0.00 | 1 | -0.77 | 40 | -30.80 | | | Ray, Charlotte | | | 1418 | NZL | 1.00 | 1 | 0.43 | 40 | 17.20 | | | Rossiter, Philip E | | | 1647 | NZL | 0.50 | 1 | 0.23 | 40 | 9.20 | | | Knightbridge, Wayne | | | 1613 | NZL | 1.00 | 1 | 0.69 | 40 | 27.60 | | | Gold, Hamish | | | 1627 | NZL | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Aldridge, Alan L. | | | 1739 | NZL | 1.00 | 1 | 0.83 | 40 | 33.20 | |
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) | | | | Bob Wade Challengers B | Auckland | NZL | 2023-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1620 | 1469 | 5.00 | 9 | 1.88 | 40 | 75.20 | |
| | Xu, Luna Yuexiu | | | 1443 | NZL | 0.00 | 1 | -0.54 | 40 | -21.60 | | | Zhang, Charles | | | 1511 | NZL | 1.00 | 1 | 0.56 | 40 | 22.40 | | | Fuatai, Fuatai | | | 1942 | NZL | 0.50 | 1 | 0.45 | 40 | 18.00 | | | Charamova, Jennya | | | 1947 | NZL | 0.00 | 1 | -0.05 | 40 | -2.00 | | | Tang, Tracy | | | 1378 | NZL | 0.50 | 1 | -0.12 | 40 | -4.80 | | | Wang, Daniel | | | 1792 | NZL | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Chang, Yolanda | | | 1507 | NZL | 1.00 | 1 | 0.55 | 40 | 22.00 | | | Benson, James | | | 1604 | NZL | 1.00 | 1 | 0.68 | 40 | 27.20 | | | Sun, Wanyao Sarah | | | 1454 | NZL | 1.00 | 1 | 0.48 | 40 | 19.20 | |
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) | | |
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