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Individual Calculations March 2010 |
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| Tilstra, Arjen Total change: -1.80 | |   |
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| Schaakfestival Groningen 2009 Mini A | Groningen | NED | 2009-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2177 | 2095 | 1.50 | 4 | -0.12 | 15 | -1.80 | |
|  Thesing, Matthias | m | | 2428 | GER | 0.00 | 1 | -0.12 | 15 | -1.80 | |  Hiemstra, Jan | | | 2019 | NED | 0.50 | 1 | -0.10 | 15 | -1.50 | | | Boersma, Jan | | | 2119 | NED | 0.50 | 1 | 0.03 | 15 | 0.45 | | | Straat, Evert-Jan | | | 2142 | NED | 0.50 | 1 | 0.07 | 15 | 1.05 | |
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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