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Individual Calculations May 2011 |
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| Hayes, Peter J. Total change: 24.80 | |   |
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| Armstrong Cup 2011 | Dublin | IRL | 2010-09-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2040 | 2029 | 2.50 | 4 | 0.56 | 25 | 14.00 | |
|  Bennett, Eric | | | 1986 | IRL | 0.00 | 1 | -0.56 | 25 | -14.00 | |  Cassidy, Paul | | | 2176 | IRL | 1.00 | 1 | 0.70 | 25 | 17.50 | | | Lyons, Brendan | | | 1951 | IRL | 1.00 | 1 | 0.39 | 25 | 9.75 | | | Egan, Colm | | | 2047 | IRL | 0.50 | 1 | 0.03 | 25 | 0.75 | |
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) | | | NOTE: K factor changed | | Irish National Chess Club Championship 2011 | Dublin | IRL | 2011-02-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2114 | 2029 | 1.50 | 2 | 0.72 | 15 | 10.80 | |
| | McCarthy, Tim | | | 2007 | IRL | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Joyce, John | | | 2221 | IRL | 0.50 | 1 | 0.25 | 15 | 3.75 | |
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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