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Individual Calculations February 2015 |
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| Ratsma, Midas Total change: -22.00 | |   |
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| Schaakfestival Groningen 2014 Open A | Groningen | NED | 2014-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2153 | 2137 | 3.50 | 9 | -0.88 | 20 | -17.60 | |
|  Biolek, Richard Jr. | m | | 2446 | CZE | 0.00 | 1 | -0.14 | 20 | -2.80 | |  Hertel, Johannes | | | 1984 | GER | 1.00 | 1 | 0.30 | 20 | 6.00 | | | De Jong, Migchiel | m | | 2320 | NED | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Lomasov, Semen | f | | 2305 | RUS | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Benson, Oisin P. | | | 2010 | IRL | 0.00 | 1 | -0.67 | 20 | -13.40 | | | Dijkstra, Arjan | | | 2029 | NED | 1.00 | 1 | 0.35 | 20 | 7.00 | | | Nguyen, Kevin | | | 1986 | NED | 0.00 | 1 | -0.70 | 20 | -14.00 | | | Acikel, Mert | | | 1917 | GER | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Senders, Mischa | f | | 2380 | NED | 0.50 | 1 | 0.30 | 20 | 6.00 | |
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) | | | | Tata Steel Chess Tournament 2015 - W2B | Wijk aan Zee | NED | 2015-01-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2085 | 2139 | 1.50 | 3 | -0.22 | 20 | -4.40 | |
| | Van Gool, Henk | | | 2112 | NED | 0.00 | 1 | -0.54 | 20 | -10.80 | | | Taal, Anne Paul | | | 2020 | NED | 0.50 | 1 | -0.16 | 20 | -3.20 | | | Boersma, Jan | | | 2123 | NED | 1.00 | 1 | 0.48 | 20 | 9.60 | |
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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