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Blitz:
Individual Calculations September 2021 |
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| Macias Zamora, Jose Armando Total change: 17.20 | |   |
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| 2021 North American Youth Chess Championships - Blitz Open Under 14 | Chicago, Illinois | USA | 2021-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1824 | 1288 | 1.00 | 4 | 0.86 | 20 | 17.20 | |
|  Feng, Eric | | | 1755 | USA | 0.00 | 1 | -0.05 | 20 | -1.00 | |  Feng, Eric | | | 1755 | USA | 0.00 | 1 | -0.05 | 20 | -1.00 | | | Wilson, Ronen | | | 1893 | USA | 1.00 | 1 | 0.98 | 20 | 19.60 | | | Wilson, Ronen | | | 1893 | USA | 0.00 | 1 | -0.02 | 20 | -0.40 | |
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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