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Individual Calculations September 2023 |
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| Perez Santana, Sebastian D. Total change: -54.80 | |   |
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| Verano Clasico-Clase B | Humacao | PUR | 2023-08-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1419 | 1240 | 0.00 | 2 | -0.54 | 40 | -21.60 | |
|  Rivera Valentin, Christian Z. | | | 1472 | PUR | 0.00 | 1 | -0.21 | 40 | -8.40 | |  Soto De Jesus, Juan J. | | | 1366 | PUR | 0.00 | 1 | -0.33 | 40 | -13.20 | |
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) | | | | XXXIII Pan-American Youth Chess Festival - Under 14 Open | Chicago, IL | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1520 | 1240 | 0.00 | 4 | -0.83 | 40 | -33.20 | |
| | Joseph, Jonath | | | 1781 | CAN | 0.00 | 1 | -0.03 | 40 | -1.20 | | | Boydell, Oliver | | | 1570 | USA | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Lugo Cruz, Yahir | | | 1458 | PUR | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Vera Arboleda, Gustavo Adolfo | | | 1271 | ECU | 0.00 | 1 | -0.46 | 40 | -18.40 | |
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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