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Individual Calculations December 2023 |
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| Davis, Tony J Total change: 43.20 | |   |
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| 2023 Hobsons Bay Club Championship Rounds 4-6 | Melbourne | AUS | 2023-10-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1571 | 1669 | 2.00 | 3 | 0.13 | 20 | 2.60 | |
|  Nowak, Ruben | | | 1427 | AUS | 1.00 | 1 | 0.20 | 20 | 4.00 | |  Paul, Cijo | | | 1630 | USA | 0.00 | 1 | -0.55 | 20 | -11.00 | | | Krishnan, Anirudh | | | 1657 | AUS | 1.00 | 1 | 0.48 | 20 | 9.60 | |
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) | | | | 2023 MCC Greg Hjorth Open | Melbourne | AUS | 2023-11-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1671 | 1712 | 5.50 | 9 | 0.54 | 20 | 10.80 | |
| | Yan, Henry | | | 1312 * | AUS | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Cannon, David | m | | 2203 | AUS | 0.00 | 1 | -0.04 | 20 | -0.80 | | | Yu, Lok Lan | | | 1402 | AUS | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Song, Shiping Zhangkai | | | 1392 | NZL | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Young, Micah | | | 1910 | AUS | 0.50 | 1 | 0.26 | 20 | 5.20 | | | Li, Tedric | c | | 1916 | AUS | 0.00 | 1 | -0.24 | 20 | -4.80 | | | Hong, Wilbur | | | 1516 | AUS | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Shen, Zhiyuan | | | 1947 | AUS | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Zhang, Daniel | | | 1442 | AUS | 1.00 | 1 | 0.17 | 20 | 3.40 | | | * 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 Victorian Seniors and Womens Championship Rounds 6-7 | Melbourne | AUS | 2023-11-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2127 | 1712 | 1.00 | 2 | 0.79 | 20 | 15.80 | |
| | Ryjanova, Julia | | wg | 2288 | AUS | 0.50 | 1 | 0.48 | 20 | 9.60 | | | Lojanica, Milenko | | | 1966 | BIH | 0.50 | 1 | 0.31 | 20 | 6.20 | |
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) | | | | 2023 Chess Artists Open Rounds 1-3 | Melbourne | AUS | 2023-11-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1489 | 1712 | 3.00 | 3 | 0.70 | 20 | 14.00 | |
| | Beckman, John | | | 1343 | AUS | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Dissanayake, Vidushi | | | 1520 | AUS | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Russell, Paul | c | | 1605 | AUS | 1.00 | 1 | 0.35 | 20 | 7.00 | |
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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