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Individual Calculations September 2023 |
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| Cao, Frank Zhongtian Total change: 2.80 | |   |
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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 |
| 1547 | 1492 | 1.50 | 3 | 0.18 | 40 | 7.20 | |
|  Schroeder, William | | | 1828 | USA | 0.50 | 1 | 0.38 | 40 | 15.20 | |  Zhu, Alicia | | | 1232 | USA | 1.00 | 1 | 0.18 | 40 | 7.20 | | | Sansing, Richard | | | 1580 | USA | 0.00 | 1 | -0.38 | 40 | -15.20 | |
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) | | | | 55th annual Atlantic Open - U2100 | Reston, VA | USA | 2023-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1704 | 1553 | 0.50 | 2 | -0.11 | 40 | -4.40 | |
| | Vuillemot, John | | | 1750 | USA | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Ruiz, Jorge C | | | 1657 | USA | 0.50 | 1 | 0.14 | 40 | 5.60 | |
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) | | |
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