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Individual Calculations January 2018 |
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| Scharft, Johan Total change: 21.40 | |   |
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| Dutch Team Competition 2017-2018 3B Round 5 | Various | NED | 2017-12-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2059 | 1973 | 0.50 | 1 | 0.12 | 20 | 2.40 | |
|  Riksten, John | | | 2059 | NED | 0.50 | 1 | 0.12 | 20 | 2.40 | |
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) | | | | Chess Festival Groningen 2017 - Vierkampen | Groningen | NED | 2017-12-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1963 | 1973 | 2.50 | 3 | 0.95 | 20 | 19.00 | |
| | Hummel, Joop | | | 1955 | NED | 1.00 | 1 | 0.47 | 20 | 9.40 | |  Bloem, Mark | | | 1967 | NED | 0.50 | 1 | -0.01 | 20 | -0.20 | | | Van Der Velde, Wytse | | | 1966 | NED | 1.00 | 1 | 0.49 | 20 | 9.80 | |
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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