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Individual Calculations June 2013 |
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| Collins, Mark A. Total change: -1.80 | |   |
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| Leinster Chess Union Div 1 Armstrong Cup 2012-2013 | Dublin | IRL | 2012-09-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2019 | 2005 | 1.00 | 2 | 0.04 | 15 | 0.60 | |
|  Skrzypnik, Tomasz | | | 2046 | POL | 1.00 | 1 | 0.56 | 15 | 8.40 | |  Delaney, Rory | | | 1991 | IRL | 0.00 | 1 | -0.52 | 15 | -7.80 | |
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 2013 | Dublin | IRL | 2013-04-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1946 | 2005 | 1.00 | 2 | -0.16 | 15 | -2.40 | |
| | Jackson, Carl | | | 1933 | IRL | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Kiiski, Joona | | | 1959 | FIN | 0.00 | 1 | -0.56 | 15 | -8.40 | |
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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