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Individual Calculations September 2022 |
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| Zhou, Ivan Total change: -4.00 | |   |
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| July 2022 BayAreaChess 2-Day Championship Major | Milpitas, CA | USA | 2022-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1542 | 1454 | 2.00 | 5 | 0.09 | 40 | 3.60 | |
|  Sabyrov, Muradhan | | | 1611 | USA | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Guo, Ella | | | 1335 | USA | 1.00 | 1 | 0.34 | 40 | 13.60 | |  Bhaduri, Neil S | | | 1578 | USA | 0.50 | 1 | 0.17 | 40 | 6.80 | | | Yao, Hanchi | | | 1571 | USA | 0.00 | 1 | -0.34 | 40 | -13.60 | | | Patil, Yashas | | | 1616 | USA | 0.50 | 1 | 0.21 | 40 | 8.40 | |
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) | | | | 2022 US Class National Championship - Class A | Milpitas, CA | USA | 2022-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1425 | 1462 | 2.00 | 4 | -0.20 | 40 | -8.00 | |
| | Jin, David | | | 1450 | USA | 0.50 | 1 | -0.02 | 40 | -0.80 | | | Fan, Shengjie | | | 1438 | USA | 0.50 | 1 | -0.03 | 40 | -1.20 | | | Qi, Jenny | | | 1491 | USA | 1.00 | 1 | 0.54 | 40 | 21.60 | | | Jin, Austin | | | 1320 | USA | 0.00 | 1 | -0.69 | 40 | -27.60 | |
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 annual Central California Open Under 2100 | Fresno CA | USA | 2022-08-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1560 | 1462 | 1.50 | 4 | 0.01 | 40 | 0.40 | |
| | Warhula, Joseph E | | | 1646 | USA | 0.50 | 1 | 0.24 | 40 | 9.60 | | | Fan, Allen Shenghan | | | 1473 | USA | 0.00 | 1 | -0.48 | 40 | -19.20 | | | Xia, Joshua | | | 1684 | USA | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Fan, Shengjie | | | 1438 | USA | 1.00 | 1 | 0.47 | 40 | 18.80 | |
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) | | |
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