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Individual Calculations April 2023 |
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| Weaver, Roy Total change: 33.60 | |   |
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| Spring 2023 ALTO | Charlotte, NC | USA | 2023-03-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1940 | 1611 | 2.00 | 4 | 0.98 | 40 | 39.20 | |
|  Fishbein, Alexander | g | | 2373 | USA | 0.00 | 1 | 0.00 | 40 | 0.00 | | | Canty, James | f | | 2155 | USA | 0.00 | 1 | -0.03 | 40 | -1.20 | |  King, Paul | | | 1397 | USA | 1.00 | 1 | 0.23 | 40 | 9.20 | | | Kliber, Michael | | | 1834 | USA | 1.00 | 1 | 0.78 | 40 | 31.20 | |
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) | | | NOTE: K factor changed | | 20th annual Southern Class Championships - Master | Orlando, FL | USA | 2023-03-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1994 | 1611 | 0.00 | 3 | -0.28 | 20 | -5.60 | |
| | Quirke, Jeffrey L | | | 1982 | USA | 0.00 | 1 | -0.10 | 20 | -2.00 | | | Peatman, Carter Frank | | | 2001 | USA | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Wu, William | | | 1998 | USA | 0.00 | 1 | -0.09 | 20 | -1.80 | |
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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