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Individual Calculations September 2023 |
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| Yang, Lucas Total change: 17.20 | |   |
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| 28th annual Bradley Open - U2100 | Windsor Locks, CT | USA | 2023-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1657 | 1460 | 1.00 | 2 | 0.50 | 40 | 20.00 | |
|  Hardin, John Michael | | | 1694 | USA | 0.00 | 1 | -0.21 | 40 | -8.40 | |  Pascetta, Michael | | | 1619 | USA | 1.00 | 1 | 0.71 | 40 | 28.40 | |
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) | | | | XXXIII Pan-American Youth Chess Festival - Under 10 Open | Chicago, IL | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1609 | 1460 | 1.00 | 3 | -0.07 | 40 | -2.80 | |
| | Guo, Ethan | c | | 1951 | USA | 0.00 | 1 | -0.04 | 40 | -1.60 | | | Escalante Rossi, Eric Rafael | | | 1117 | PER | 0.00 | 1 | -0.88 | 40 | -35.20 | | | Iranian Prabhu Kumar, Ashwin | | | 1760 | USA | 1.00 | 1 | 0.85 | 40 | 34.00 | |
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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