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Individual Calculations September 2023 |
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| Fischer, Robert J Total change: 1.80 | |   |
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| 10th Annual Potomac Open - U2200 | Rockville, MD | USA | 2023-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1782 | 1790 | 2.50 | 5 | -0.10 | 20 | -2.00 | |
|  Kurup, Siddharth Ajay | | | 1689 | USA | 0.50 | 1 | -0.14 | 20 | -2.80 | |  Meyer-Chabris, Caleb | | | 1643 | USA | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Jinsi, Soham Gyani | | | 1752 | USA | 0.00 | 1 | -0.55 | 20 | -11.00 | | | Ho, Ryan | | | 1753 | USA | 1.00 | 1 | 0.45 | 20 | 9.00 | | | Yakubov, Mardon | | | 2071 | UZB | 0.00 | 1 | -0.16 | 20 | -3.20 | |
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) | | | | 6th Annual Irwin National Tournament of Senior State Champions | Grand Rapids, Michigan | USA | 2023-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1992 | 1790 | 2.50 | 5 | 1.01 | 20 | 20.20 | |
| | Burnett, Ronald W | m | | 2288 | USA | 0.00 | 1 | -0.04 | 20 | -0.80 | | | Fuller Ii, James A | | | 1674 | USA | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Vanmeter, Lester L | f | | 1813 | USA | 1.00 | 1 | 0.53 | 20 | 10.60 | | | Rubsamen, Cornelius | | | 2196 | USA | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Truelson, Nels W | | | 1990 | USA | 0.50 | 1 | 0.26 | 20 | 5.20 | |
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 |
| 1578 | 1801 | 1.50 | 3 | -0.82 | 20 | -16.40 | |
| | Cooke, Grayson | | | 1673 | USA | 0.00 | 1 | -0.67 | 20 | -13.40 | | | Havens, Josh | | | 1472 | USA | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Chovanec, Alice | | | 1590 | USA | 0.50 | 1 | -0.27 | 20 | -5.40 | |
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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