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Individual Calculations April 2009 |
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| Mac Intyre, Paul Total change: 8.85 | |   |
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| Bermuda International Open | hamilton | BER | 2009-01-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2250 | 2281 | 0.50 | 2 | -0.55 | 15 | -8.25 | |
|  Defirmian, Nick | g | | 2545 | USA | 0.00 | 1 | -0.18 | 15 | -2.70 | |  Mufundaedza, Moses | | | 1955 | BER | 0.50 | 1 | -0.37 | 15 | -5.55 | |
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) | | | | 39th Annual World Amateur Team & US Team East | Parsippany, New Jersey | USA | 2009-02-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2404 | 2281 | 2.00 | 5 | 0.28 | 15 | 4.20 | |
| | Hess, Robert L | m | | 2483 | USA | 0.00 | 1 | -0.24 | 15 | -3.60 | | | De Firmian, Nick E | g | | 2545 | USA | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Critelli, James | f | | 2286 | USA | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Leverett, Bruce W | | | 2295 | USA | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Kaufman, Lawrence | g | | 2409 | USA | 0.50 | 1 | 0.17 | 15 | 2.55 | |
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) | | | | 18th Annual Eastern Class Championships | Sturbridge, Massachusetts | USA | 2009-03-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2340 | 2281 | 3.00 | 5 | 0.86 | 15 | 12.90 | |
| | Esserman, Marc R | | | 2345 | USA | 0.50 | 1 | 0.09 | 15 | 1.35 | | | Curdo, John A | f | | 2249 | USA | 0.50 | 1 | -0.04 | 15 | -0.60 | | | Vertkin, Sergey | | | 2211 | RUS | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Mandizha, Farai | f | | 2332 | ZIM | 1.00 | 1 | 0.57 | 15 | 8.55 | | | Kudrin, Sergey | g | | 2561 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | |
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) | | |
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