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Individual Calculations February 2018 |
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| O`connor, Jonathan Total change: 11.60 | |   |
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| The Irish over 50, over 65 Championships 2018 | Dublin | IRL | 2018-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1998 | 2222 | 6.00 | 7 | 0.58 | 20 | 11.60 | |
|  ++lynch ++, Peter | | | 1822 * | IRL | 1.00 | 1 | 0.08 | 20 | 1.60 | |  ++morriss ++, Pete | | | 1979 | IRL | 1.00 | 1 | 0.20 | 20 | 4.00 | | | ++harding ++, Tim | c | | 1998 | IRL | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Gardenes, Manuel | | | 2048 | ESP | 1.00 | 1 | 0.27 | 20 | 5.40 | | | O`connell, Gerard | | | 2129 | IRL | 0.50 | 1 | -0.13 | 20 | -2.60 | | | Duffy, Seamus | | | 2015 | IRL | 0.50 | 1 | -0.27 | 20 | -5.40 | | | Cafolla, Peter | | | 1992 | IRL | 1.00 | 1 | 0.21 | 20 | 4.20 | | | * 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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