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Individual Calculations May 2015 |
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| Iyengar, Ilya Total change: 7.20 | |   |
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| 59th Southend Chess Congress | Southend-on-Sea | ENG | 2015-04-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1983 | 2025 | 3.00 | 4 | 0.79 | 20 | 15.80 | |
|  Le Fevre, Stephen D | | | 1792 | ENG | 1.00 | 1 | 0.21 | 20 | 4.20 | |  Aravind, Subramanian N | | | 2107 | IND | 0.00 | 1 | -0.39 | 20 | -7.80 | | | Bin-Suhayl, Ieysaa | | | 1879 | ITA | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Sarakauskiene, Zivile | | wm | 2152 | ENG | 1.00 | 1 | 0.67 | 20 | 13.40 | |
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) | | | | Hampstead Under 2200 Congress Apr 18 | London | ENG | 2015-04-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1756 | 2025 | 3.50 | 5 | -0.47 | 20 | -9.40 | |
| | Pride, Stephen C | | | 1656 | ENG | 0.50 | 1 | -0.40 | 20 | -8.00 | | | Nayak, Raghav | | | 1648 | ENG | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Finnegan, Oliver | | | 1743 | ENG | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Wu, Haotian | | | 1642 | ENG | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Villiers, Thomas | | | 2089 | ENG | 0.00 | 1 | -0.41 | 20 | -8.20 | |
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 (Open Section) | London | ENG | 2015-04-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2038 | 2025 | 1.00 | 2 | 0.04 | 20 | 0.80 | |
| | Prior, Stephen C V | | | 1996 | ENG | 1.00 | 1 | 0.46 | 20 | 9.20 | | | Atako, Chino C | | | 2080 | ENG | 0.00 | 1 | -0.42 | 20 | -8.40 | |
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) | | |
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