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Individual Calculations February 2013 |
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| Erin, Igor Total change: 23.10 | |   |
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| Tata Steel Chess Tournament 2013 Weekend 4E | Wijk aan Zee | NED | 2013-01-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1873 | 1740 | 1.50 | 2 | 0.86 | 30 | 25.80 | |
|  Romijn, Bart | | | 1860 | NED | 1.00 | 1 | 0.66 | 30 | 19.80 | | | Van Der Togt, Twan | | | 1886 | NED | 0.50 | 1 | 0.20 | 30 | 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 2013 Dag 4H | Wijk aan Zee | NED | 2013-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1894 | 1740 | 0.50 | 2 | -0.09 | 30 | -2.70 | |
| | De Veij, Ton | | | 1920 | NED | 0.50 | 1 | 0.24 | 30 | 7.20 | | | Tulfer, Paul | | | 1867 | NED | 0.00 | 1 | -0.33 | 30 | -9.90 | |
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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