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Individual Calculations May 2021 |
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| Davis, Tony J Total change: -8.80 | |   |
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| 2021 Hobsons Bay Purdy Cup | Melbourne | AUS | 2021-03-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1565 | 1760 | 4.00 | 5 | 0.41 | 20 | 8.20 | |
|  D`souza, Nathan | | | 1360 * | AUS | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Saric, Sergey | | | 1450 | AUS | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Paul, Cijo | | | 1430 | USA | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Hogan, Steven | | | 1576 | AUS | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Hogg, Dean | | | 2007 | AUS | 0.00 | 1 | -0.19 | 20 | -3.80 | | | * 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) | | | | 2021 O2C Doeberl Cup Major | Canberra | AUS | 2021-04-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1588 | 1764 | 4.00 | 7 | -1.06 | 20 | -21.20 | |
| | Guo, David | | | 1600 | AUS | 0.50 | 1 | -0.22 | 20 | -4.40 | | | Van Sebille, Sulia | | | 1637 | AUS | 0.00 | 1 | -0.67 | 20 | -13.40 | | | Zhu, Harvey | | | 1464 | AUS | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Young, Micah | | | 1510 | AUS | 0.50 | 1 | -0.31 | 20 | -6.20 | | | Trewin, Samuel | | | 1695 | AUS | 1.00 | 1 | 0.40 | 20 | 8.00 | | | Atia, Ben | | | 1526 | AUS | 0.00 | 1 | -0.80 | 20 | -16.00 | | | White, Henry | | | 1684 | AUS | 1.00 | 1 | 0.39 | 20 | 7.80 | |
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) | | | | 2021 MCC Anzac Day Weekender | Melbourne | AUS | 2021-04-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1584 | 1764 | 3.00 | 4 | 0.21 | 20 | 4.20 | |
| | Susindran, Neelesh | | | 1364 * | AUS | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Singh, Surjeet | | | 1429 | AUS | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Poberezovsky, Daniel | | | 1893 | AUS | 0.50 | 1 | 0.17 | 20 | 3.40 | | | Lee, Lachlan | | | 1650 | AUS | 0.50 | 1 | -0.16 | 20 | -3.20 | | | * 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) | | |
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