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Individual Calculations May 2011 |
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| Healy, John Total change: 9.30 | |   |
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| Armstrong Cup 2011 | Dublin | IRL | 2010-09-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1927 | 1860 | 1.00 | 2 | 0.17 | 15 | 2.55 | |
|  Kennedy, Michael J. | | | 1800 | IRL | 1.00 | 1 | 0.42 | 15 | 6.30 | |  Byrne, Ray | | | 2054 | IRL | 0.00 | 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) | | | | Heidenfeld Trophy | Dublin | IRL | 2010-09-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2019 | 1860 | 1.00 | 3 | 0.07 | 15 | 1.05 | |
| | Dempsey, Paul | | | 2196 | IRL | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Goetzee, Rick | | | 1933 | IRL | 0.50 | 1 | 0.10 | 15 | 1.50 | | | Beckett, Brian | | | 1928 | IRL | 0.50 | 1 | 0.09 | 15 | 1.35 | |
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 |
| 2032 | 1848 | 1.00 | 2 | 0.38 | 15 | 5.70 | |
| | Lee, Shane | | | 1816 | IRL | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Astaneh Lopez, Alex | f | | 2248 * | IRL | 0.00 | 1 | -0.08 | 15 | -1.20 | | | * 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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