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Individual Calculations April 2013 |
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| Izoria, Zviad Total change: 3.80 | |   |
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| 7th Annual Long Island Open | Ronkonkoma, New York | USA | 2013-03-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2428 | 2583 | 2.50 | 3 | 0.43 | 10 | 4.30 | |
|  Renna, Anthony | f | | 2365 | USA | 1.00 | 1 | 0.22 | 10 | 2.20 | |  Bonin, Jay Richard | m | | 2318 | USA | 0.50 | 1 | -0.32 | 10 | -3.20 | | | Lenderman, Aleksandr | g | | 2601 | USA | 1.00 | 1 | 0.53 | 10 | 5.30 | |
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) | | | | 35th Annual Marchand Open | Rochester, New York | USA | 2013-03-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2316 | 2583 | 4.00 | 5 | -0.05 | 10 | -0.50 | |
| | Luce, Eric J | | | 2183 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Davis, Barry | | | 2205 | USA | 1.00 | 1 | 0.09 | 10 | 0.90 | | | Bartell, Thomas | f | | 2380 | USA | 0.50 | 1 | -0.26 | 10 | -2.60 | | | Nikolayev, Igor | f | | 2353 | USA | 1.00 | 1 | 0.21 | 10 | 2.10 | | | Smith, Bryan G | m | | 2460 | USA | 0.50 | 1 | -0.17 | 10 | -1.70 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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