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Individual Calculations May 2012 |
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| Vibbert, Sean Total change: 34.35 | |   |
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| 16th Annual Mid-America Open | Saint Louis, Missouri | USA | 2012-03-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2188 | 2180 | 3.00 | 4 | 0.98 | 15 | 14.70 | |
|  Coraretti, Benjamin | | | 2054 | USA | 1.00 | 1 | 0.33 | 15 | 4.95 | |  Finegold, Benjamin | g | | 2505 | USA | 0.50 | 1 | 0.37 | 15 | 5.55 | | | Menon, Gopal | | | 2172 | USA | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Amarasinghe, Prashantha N | | | 2019 | SRI | 1.00 | 1 | 0.29 | 15 | 4.35 | |
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) | | | | 6th Annual Philadelphia Open | Philadelphia, Pennsylvania | USA | 2012-04-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2290 | 2180 | 4.50 | 9 | 1.31 | 15 | 19.65 | |
| | Gerzhoy, Leonid | m | | 2489 | CAN | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Liang, Awonder | f | | 1880 | USA | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Goletiani, Rusudan | m | wg | 2344 | USA | 1.00 | 1 | 0.72 | 15 | 10.80 | | | Kashtanov, Rulsan | m | | 2361 | RUS | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Bonin, Jay Richard | m | | 2313 | USA | 0.50 | 1 | 0.18 | 15 | 2.70 | | | Nemcova, Katerina | | wg | 2275 | CZE | 1.00 | 1 | 0.63 | 15 | 9.45 | | | Sarkar, Justin | m | | 2391 | USA | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Santarius, Erik | | | 2292 | USA | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Betaneli, Alex | f | | 2263 | USA | 1.00 | 1 | 0.61 | 15 | 9.15 | |
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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