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Individual Calculations December 2018 |
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| O`brien, Ray Total change: -39.60 | |   |
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| Limerick Open 2018 | Limerick | IRL | 2018-10-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1594 | 1640 | 1.50 | 4 | -0.83 | 20 | -16.60 | |
|  Piscopo, Pierluigi | m | | 2040 * | ITA | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Renji, Rafael | | | 1467 | IRL | 0.50 | 1 | -0.23 | 20 | -4.60 | | | Solomatina, Jana | | | 1384 | LAT | 0.50 | 1 | -0.31 | 20 | -6.20 | | | Dineen, Tim | | | 1485 | IRL | 0.50 | 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) | | | | Munster Leagues 2018-19 Rounds 1-2 | Limerick | IRL | 2018-11-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1658 | 1640 | 0.00 | 1 | -0.47 | 20 | -9.40 | |
| | Myers, Tom | | | 1658 | IRL | 0.00 | 1 | -0.47 | 20 | -9.40 | |
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) | | | | Munster Leagues 2018-19 Rounds 3-4 | Limerick | IRL | 2018-11-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1763 | 1640 | 0.00 | 2 | -0.68 | 20 | -13.60 | |
| | O`brien, Liam | | | 1839 | IRL | 0.00 | 1 | -0.24 | 20 | -4.80 | | | Casey, Gerry | | | 1686 | IRL | 0.00 | 1 | -0.44 | 20 | -8.80 | |
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) | | |
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