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Individual Calculations February 2019 |
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| Parry, Jacques Total change: -67.80 | |   |
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| London Christmas Chess Congress Major | London | ENG | 2018-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1721 | 1639 | 1.50 | 4 | -0.07 | 20 | -1.40 | |
|  Colter, Nigel | | | 1680 | ENG | 0.50 | 1 | 0.06 | 20 | 1.20 | |  Gatterdam, Karl Heinz | | | 1737 | CHI | 0.50 | 1 | 0.13 | 20 | 2.60 | | | Ashcroft, Graham J | | | 1860 | ENG | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Usharovsky, Ron | | | 1607 | ENG | 0.50 | 1 | -0.04 | 20 | -0.80 | |
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) | | | | 21st 4NCL Congress Major | Harrogate | ENG | 2019-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1636 | 1681 | 0.50 | 5 | -2.29 | 20 | -45.80 | |
| | Riding, Mick D | | | 1872 | ENG | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Cawston, M John | | | 1850 | ENG | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Shenbagakumar, Gautham | | | 1465 | ENG | 0.50 | 1 | -0.28 | 20 | -5.60 | | | Mendis, Vidura | | | 1468 | ENG | 0.00 | 1 | -0.77 | 20 | -15.40 | | | Bamford, Paul | | | 1526 | ENG | 0.00 | 1 | -0.71 | 20 | -14.20 | |
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) | | | | Central London Chess Congress Major 2019 | London | ENG | 2019-01-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1471 | 1681 | 2.00 | 4 | -1.03 | 20 | -20.60 | |
| | Lim, Zi Liang | | | 1450 | SGP | 0.50 | 1 | -0.29 | 20 | -5.80 | | | Slonczuk, Pawel | | | 1534 | ENG | 0.50 | 1 | -0.20 | 20 | -4.00 | | | Moran, Joe | | | 1561 | ENG | 0.50 | 1 | -0.16 | 20 | -3.20 | | | Pradeep, Verma | | | 1340 | IND | 0.50 | 1 | -0.38 | 20 | -7.60 | |
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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