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Individual Calculations May 2019 |
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| Mason, Donald J Total change: 11.60 | |   |
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| English Seniors Championship Over 50 2019 | Solihull | ENG | 2019-04-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1983 | 2065 | 3.00 | 5 | 0.03 | 20 | 0.60 | |
|  Talas, Sandor | | | 1665 * | ENG | 0.50 | 1 | -0.42 | 20 | -8.40 | |  Smith, Simon C | | | 1912 | ENG | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Dilleigh, Stephen P | | | 1989 | ENG | 0.50 | 1 | -0.10 | 20 | -2.00 | | | Littlewood, Paul E | m | | 2343 | ENG | 0.00 | 1 | -0.17 | 20 | -3.40 | | | Simons, Martin J | | | 2005 | ENG | 1.00 | 1 | 0.42 | 20 | 8.40 | | | * 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) | | | | 2019 Bolton Easter Congress | Bolton | ENG | 2019-04-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1998 | 2065 | 3.50 | 5 | 0.55 | 20 | 11.00 | |
| | Hymer, Barry | | | 1882 | ENG | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Doherty, Paul | | | 1732 | ENG | 1.00 | 1 | 0.12 | 20 | 2.40 | | | McPhillips, Joseph | m | | 2407 | ENG | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Surtees, Mike J | | | 2087 | ENG | 0.50 | 1 | 0.03 | 20 | 0.60 | | | Kobryn, Peter J | | | 1884 | ENG | 1.00 | 1 | 0.26 | 20 | 5.20 | |
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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