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Individual Calculations February 2019 |
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| Jukes, Sam Total change: -8.20 | |   |
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| South Wales New Year Open 2019 | Bridgend | WLS | 2019-01-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1834 | 1914 | 2.50 | 5 | -0.49 | 20 | -9.80 | |
|  Fox, Chris | | | 1675 | WLS | 1.00 | 1 | 0.20 | 20 | 4.00 | |  Sands, David A | | | 2086 | WLS | 0.00 | 1 | -0.27 | 20 | -5.40 | | | Morgans, Justin | | | 1653 | WLS | 0.50 | 1 | -0.32 | 20 | -6.40 | | | Waterfield, John W | | | 1920 | WLS | 0.00 | 1 | -0.49 | 20 | -9.80 | | | Howells, Chris | | | 1834 | WLS | 1.00 | 1 | 0.39 | 20 | 7.80 | |
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) | | | | 2018/19 4NCL Div 4 Rounds 3 - 4 | Bedford | ENG | 2019-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1887 | 1914 | 1.00 | 2 | -0.08 | 20 | -1.60 | |
| | De Coverly, Roger D | | | 1938 | ENG | 0.00 | 1 | -0.47 | 20 | -9.40 | | | Obi, Marc On | | | 1835 | ENG | 1.00 | 1 | 0.39 | 20 | 7.80 | |
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 2018/2019 Round 3 | Neath | WLS | 2019-01-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2028 | 1914 | 0.50 | 1 | 0.16 | 20 | 3.20 | |
| | Garcia, Jason | | | 2028 | WLS | 0.50 | 1 | 0.16 | 20 | 3.20 | |
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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