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Individual Calculations February 2018 |
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| Pleasants, Allan J Total change: -24.40 | |   |
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| South Wales New Year Open 2018 | Bridgend | WLS | 2018-01-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1885 | 2139 | 3.50 | 5 | -0.52 | 20 | -10.40 | |
|  Waterfield, John W | | | 1925 | WLS | 0.00 | 1 | -0.77 | 20 | -15.40 | |  Turner, Joseph David | | | 1889 | WLS | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Parry, Matthew | | | 1903 | WLS | 0.50 | 1 | -0.30 | 20 | -6.00 | | | Denham, Colin | | | 1739 * | WLS | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Van Kemenade, Rudy | | | 1969 | WLS | 1.00 | 1 | 0.28 | 20 | 5.60 | | | * 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) | | | | 2017/18 4NCL Division 3 South Rounds 3-4 | Reading | ENG | 2018-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2010 | 2139 | 1.00 | 2 | -0.35 | 20 | -7.00 | |
| | Peck, Silas | | | 2001 | ENG | 0.00 | 1 | -0.69 | 20 | -13.80 | | | Chan, Nevil | | | 2018 | ENG | 1.00 | 1 | 0.34 | 20 | 6.80 | |
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) | | | | Welsh Chess Premier League 2017/18 Round 3 | Neath | WLS | 2018-01-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2251 | 2139 | 0.00 | 1 | -0.35 | 20 | -7.00 | |
| | Toczek, Grzegorz | f | | 2251 | POL | 0.00 | 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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