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Individual Calculations August 2018 |
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| Botez, Andrea Total change: -108.80 | |   |
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| 2018 Canadian Youth Chess Championship U18 Girls | Quebec City | CAN | 2018-07-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1874 | 1773 | 0.50 | 3 | -0.69 | 40 | -27.60 | |
|  Cao, Yingying (lucy) | | | 1583 | CAN | 0.50 | 1 | -0.25 | 40 | -10.00 | | | Li, Yilin | | | 1885 | CAN | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Demchenko, Svitlana | | wf | 2154 | CAN | 0.00 | 1 | -0.09 | 40 | -3.60 | |
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) | | | | 2018 Canadian Open U2000 | Quebec City | CAN | 2018-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1718 | 1773 | 1.00 | 4 | -1.29 | 40 | -51.60 | |
|  Cao, Yingying (lucy) | | | 1583 | CAN | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Bremner, William | | | 1684 | CAN | 0.00 | 1 | -0.62 | 40 | -24.80 | | | Richard, Leo | | | 1699 | CAN | 0.00 | 1 | -0.60 | 40 | -24.00 | | | Wijetunge, Ivan | | | 1906 | USA | 0.00 | 1 | -0.32 | 40 | -12.80 | |
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) | | | | 15th Annual Susan Polgar Foundation Girls Invitational | St. Louis, Missouri | USA | 2018-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1695 | 1773 | 1.00 | 3 | -0.74 | 40 | -29.60 | |
| | Li, Marissa | | wc | 1974 | USA | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Castro, Bria | | | 1696 | USA | 0.00 | 1 | -0.61 | 40 | -24.40 | | | Joseph, Rita Mary | | | 1416 | USA | 1.00 | 1 | 0.11 | 40 | 4.40 | |
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) | | |
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