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Individual Calculations September 2019 |
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| Chen, Helen Total change: -137.60 | |   |
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| 2019 Calgary Chess Club Championship | Calgary | CAN | 2019-06-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1673 | 1477 | 0.00 | 2 | -0.54 | 40 | -21.60 | |
|  Miller, Brian | | | 1802 | CAN | 0.00 | 1 | -0.13 | 40 | -5.20 | |  Sklenka, Steve | | | 1543 | CAN | 0.00 | 1 | -0.41 | 40 | -16.40 | |
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) | | | | 12th Calgary International Open | Calgary | CAN | 2019-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1735 | 1447 | 0.00 | 4 | -0.65 | 40 | -26.00 | |
| | Wang, Paul | | | 1796 | CAN | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Milne, Arthur | | | 1669 | CAN | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Collins, Jacob | | | 1678 | CAN | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Chen, Andrew | | | 1796 | CAN | 0.00 | 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) | | | | 2019 NAYCC U12 Girls | Kingston | CAN | 2019-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1248 | 1447 | 0.00 | 3 | -2.25 | 40 | -90.00 | |
| | Sofia, Isavelina Tec Rodas | | | 1163 | MEX | 0.00 | 1 | -0.84 | 40 | -33.60 | | | Kally, Wen | | wc | 1339 | USA | 0.00 | 1 | -0.65 | 40 | -26.00 | | | Sofia, Gomez Camara | | | 1243 | MEX | 0.00 | 1 | -0.76 | 40 | -30.40 | |
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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