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Individual Calculations May 2018 |
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| O`connor, Jonathan Total change: -0.20 | |   |
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| Armstrong Cup 2017-18 Rounds 9-10 | Various | IRL | 2018-02-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1925 | 2234 | 1.00 | 1 | 0.14 | 20 | 2.80 | |
|  Dunne, Pearse | | | 1925 | IRL | 1.00 | 1 | 0.14 | 20 | 2.80 | |
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) | | | | National Club Championships 2018 | Athlone | IRL | 2018-04-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1968 | 2238 | 1.50 | 2 | -0.15 | 20 | -3.00 | |
| | Bourached, Amthony | | | 1995 | IRL | 1.00 | 1 | 0.20 | 20 | 4.00 | |  Tirziman, Rudolf | | | 1941 | IRL | 0.50 | 1 | -0.35 | 20 | -7.00 | |
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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