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Individual Calculations February 2018 |
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| Bosveld, Henk Total change: 3.40 | |   |
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| Chess Festival Groningen 2017 - Compact A | Groningen | NED | 2017-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2104 | 1980 | 1.50 | 4 | 0.17 | 20 | 3.40 | |
|  Wubben, Marcel | | | 2054 | NED | 0.50 | 1 | 0.10 | 20 | 2.00 | |  Kroon, Roelof | | | 2149 | NED | 0.50 | 1 | 0.22 | 20 | 4.40 | | | Wolferink, Frans | | | 2102 | NED | 0.50 | 1 | 0.17 | 20 | 3.40 | | | Mellema, Andries | | | 2112 | NED | 0.00 | 1 | -0.32 | 20 | -6.40 | |
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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