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Individual Calculations May 2012 |
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| Williams, Justus D Total change: -7.80 | |   |
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| 42nd Annual World Amateur Team and US Team East | Parsippany, New Jersey | USA | 2012-02-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2355 | 2169 | 0.00 | 3 | -0.86 | 15 | -12.90 | |
|  Perez, Robert | | | 2284 | USA | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Hess, Robert L | g | | 2569 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | |  Kahn, Aaron E | | | 2212 | USA | 0.00 | 1 | -0.44 | 15 | -6.60 | | | * 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) | | | | 6th Annual Philadelphia Open | Philadelphia, Pennsylvania | USA | 2012-04-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2234 | 2197 | 4.50 | 9 | 0.34 | 15 | 5.10 | |
| | Kaidanov, Gregory | g | | 2597 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Richman, Jonathan | | | 2045 | USA | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Kashtanov, Rulsan | m | | 2361 | RUS | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Colas, Joshua | | | 2057 | USA | 0.00 | 1 | -0.69 | 15 | -10.35 | | | Sakai, Hibiki | | | 2031 | JPN | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Ulrich, Thomas M | | | 2090 | USA | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Bonin, Jay Richard | m | | 2313 | USA | 0.50 | 1 | 0.16 | 15 | 2.40 | | | Betaneli, Alex | f | | 2263 | USA | 1.00 | 1 | 0.59 | 15 | 8.85 | | | Burnett, Ronald | m | | 2352 | USA | 0.00 | 1 | -0.29 | 15 | -4.35 | | | * 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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