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Individual Calculations February 2015 |
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| Van Osch, Mees Total change: 7.60 | |   |
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| Schaakfestival Groningen 2014 Open A | Groningen | NED | 2014-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2268 | 2261 | 5.00 | 9 | 0.60 | 20 | 12.00 | |
|  De Boer, Eelke | | | 1933 | NED | 1.00 | 1 | 0.13 | 20 | 2.60 | |  Raznikov, Danny | m | | 2494 | ISR | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Veltman, Anne | | | 2012 | NED | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Hoeksema, Erik | m | | 2342 | NED | 0.00 | 1 | -0.39 | 20 | -7.80 | | | Sparenberg, Erik | | | 2105 | NED | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Bulmaga, Irina | m | wg | 2392 | ROU | 1.00 | 1 | 0.68 | 20 | 13.60 | | | Vocaturo, Daniele | g | | 2590 | ITA | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Nakar, Eylon | m | | 2419 | ISR | 0.00 | 1 | -0.29 | 20 | -5.80 | | | Dijkhuis, Sven | | | 2126 | NED | 1.00 | 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) | | | | Tata Steel Chess Tournament 2015 - W1B | Wijk aan Zee | NED | 2015-01-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2146 | 2269 | 1.50 | 3 | -0.51 | 20 | -10.20 | |
| | Warmerdam, Max | | | 2105 | NED | 0.00 | 1 | -0.72 | 20 | -14.40 | | | Merbis, Max | | | 2155 | NED | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Van Weersel, Arlette | | wm | 2177 | NED | 0.50 | 1 | -0.13 | 20 | -2.60 | |
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) | | | | Tata Steel Chess Tournament 2015 - D1A | Wijk aan Zee | NED | 2015-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2219 | 2269 | 2.00 | 3 | 0.29 | 20 | 5.80 | |
| | Langedijk, Ardjan | | | 2131 | NED | 1.00 | 1 | 0.31 | 20 | 6.20 | | | Van Dijk, Harold | f | | 2284 | NED | 0.50 | 1 | 0.02 | 20 | 0.40 | | | Spaan, Tigran | f | | 2242 | NED | 0.50 | 1 | -0.04 | 20 | -0.80 | |
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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