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Individual Calculations July 2010 |
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| Piper, Matthew S Total change: 23.25 | |   |
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| Four Nations Chess League (4NCL) | Various | ENG | 2009-10-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2352 | 2304 | 5.50 | 9 | 1.55 | 15 | 23.25 | |
|  Eckersley-Waites, Tom | | | 2247 | ENG | 1.00 | 1 | 0.42 | 15 | 6.30 | |  Anderton, Matthew N | | | 2232 | ENG | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Harakis, Alexis M | | | 2263 | ENG | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Speelman, Jon S | g | | 2525 | ENG | 0.50 | 1 | 0.28 | 15 | 4.20 | | | Mah, Karl C C | m | | 2417 | ENG | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Emms, John M | g | | 2484 | ENG | 0.50 | 1 | 0.24 | 15 | 3.60 | | | Posazhennikov, Alex | | | 2252 | RUS | 1.00 | 1 | 0.43 | 15 | 6.45 | | | Cobb, James E | m | | 2415 | WLS | 0.50 | 1 | 0.15 | 15 | 2.25 | | | Slavin, Alexei | f | | 2331 | RUS | 0.00 | 1 | -0.46 | 15 | -6.90 | |
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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