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Individual Calculations August 2023 |
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| Huddleston, James Total change: 59.20 | |   |
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| 13th annual World Open Senior Amateur | Philadelphia, PA | USA | 2023-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1793 | 1608 | 2.50 | 3 | 1.62 | 20 | 32.40 | |
|  Treger, Yefim | | | 1896 | USA | 0.50 | 1 | 0.34 | 20 | 6.80 | | | Meredith, Matthew Derek | | | 1955 | USA | 1.00 | 1 | 0.89 | 20 | 17.80 | |  Sperber, Ronald David | | | 1527 | USA | 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) | | | | 51st annual World Open - U2000 | Philadelphia, PA | USA | 2023-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1576 | 1608 | 3.50 | 4 | 1.34 | 20 | 26.80 | |
| | Reznikov, Gennadiy | | | 1455 | USA | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Sand, Richard | | | 1526 | USA | 1.00 | 1 | 0.39 | 20 | 7.80 | | | Serrato, Rafael | | | 1700 | COL | 0.50 | 1 | 0.13 | 20 | 2.60 | | | Tumuluri, Vasishta | | | 1621 | USA | 1.00 | 1 | 0.52 | 20 | 10.40 | |
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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