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Individual Calculations July 2021 |
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| Lazarus, Barry J Total change: -13.00 | |   |
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| 2021 National Open - Under 2100 | Las Vegas, Nevada | USA | 2021-06-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1653 | 1784 | 4.00 | 6 | 0.16 | 20 | 3.20 | |
|  Tia, Rudy Goce | | | 1789 | PNG | 0.00 | 1 | -0.49 | 20 | -9.80 | |  Boyd, Thomas E | | | 1402 | USA | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Kaur, Aradh | | | 1384 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Daniels, Noah Montgomery | | | 1751 | USA | 0.00 | 1 | -0.55 | 20 | -11.00 | | | Wang, Luke | | | 1634 | USA | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Hiltunen, James | | | 1957 | USA | 1.00 | 1 | 0.73 | 20 | 14.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | Castle FIDE Premiere - Premiere June 2021 | Bloomington, Minnesota | USA | 2021-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1929 | 1784 | 0.50 | 4 | -0.81 | 20 | -16.20 | |
| | Cavanah, Troy | | | 2035 | USA | 0.00 | 1 | -0.19 | 20 | -3.80 | | | Olofinboba, Tunde | | | 1588 | USA | 0.50 | 1 | -0.25 | 20 | -5.00 | | | Tramm, Elijah | | | 1986 | USA | 0.00 | 1 | -0.24 | 20 | -4.80 | | | Muff, Michael Thom | | | 2106 | USA | 0.00 | 1 | -0.13 | 20 | -2.60 | |
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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