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Individual Calculations February 2018 |
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| Polgar-Shutzman, Tom Total change: 3.40 | |   |
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| 2017 Pan-American Intercollegiate Team Chess Championship | Columbus, Ohio | USA | 2017-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2139 | 2078 | 1.00 | 4 | -0.67 | 40 | -26.80 | |
|  Nakar, Eylon | m | | 2468 | ISR | 0.00 | 1 | -0.09 | 40 | -3.60 | |  Nakagawa, Seiji | | | 1678 * | CAN | 0.00 | 1 | -0.92 | 40 | -36.80 | | | Krishnan, Varun | f | | 2247 | USA | 0.50 | 1 | 0.22 | 40 | 8.80 | | | Zhao, Jim | | | 2162 | CAN | 0.50 | 1 | 0.12 | 40 | 4.80 | | | * 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) | | | NOTE: K factor changed | | 4th Gulf Coast New Year's Open | Estero, Florida | USA | 2018-01-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2225 | 2078 | 1.50 | 4 | 0.17 | 20 | 3.40 | |
| | Quesada Perez, Yuniesky | g | | 2478 * | CUB | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Valido Bouza, Cesar Jose | f | | 2267 | CUB | 0.50 | 1 | 0.25 | 20 | 5.00 | | | Cardona Mejia, Kerin Omar | | | 1967 | HON | 0.50 | 1 | -0.15 | 20 | -3.00 | | | Hernandez Perez, Pedro | | | 2187 | CUB | 0.50 | 1 | 0.15 | 20 | 3.00 | | | * 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) | | | NOTE: K factor changed | | Chicago Chess Center Jane Addams Memorial | Chicago, Illinois | USA | 2018-01-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2155 | 2078 | 3.00 | 4 | 1.34 | 20 | 26.80 | |
| | Li, Zhaozhi | m | | 2412 | USA | 1.00 | 1 | 0.88 | 20 | 17.60 | | | Kannappan, Priyadharshan | g | | 2478 * | IND | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Johnson, Henderson | | | 1678 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Drake, Jason | | | 2052 | USA | 1.00 | 1 | 0.46 | 20 | 9.20 | | | * 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) | | |
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