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Individual Calculations May 2011 |
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| Igaz, Peter Total change: -15.30 | |   |
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| Armstrong Cup 2011 | Dublin | IRL | 2010-09-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1928 | 2118 | 1.50 | 3 | -0.66 | 15 | -9.90 | |
|  Scannell, Tony | | | 2011 | IRL | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Lynch, Peter J. | | | 1718 * | IRL | 1.00 | 1 | 0.08 | 15 | 1.20 | |  Byrne, Ray | | | 2054 | IRL | 0.00 | 1 | -0.59 | 15 | -8.85 | | | * 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) | | | | Irish National Chess Club Championship 2011 | Dublin | IRL | 2011-02-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2221 | 2118 | 0.00 | 1 | -0.36 | 15 | -5.40 | |
| | Joyce, John | | | 2221 | IRL | 0.00 | 1 | -0.36 | 15 | -5.40 | |
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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