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Individual Calculations May 2013 |
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| Oyama, Akito Total change: 5.40 | |   |
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| Coulsdon Spring Open 2013 | COULSDON | ENG | 2013-03-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1939 | 1917 | 2.00 | 4 | 0.21 | 15 | 3.15 | |
|  Haldane, Robin W | | | 2115 | ENG | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Gliddon, Daniel J | | | 1533 | ENG | 1.00 | 1 | 0.09 | 15 | 1.35 | |  Warman, Simon M | | | 2077 | ENG | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Andreev, Peter | | | 2030 | ENG | 1.00 | 1 | 0.65 | 15 | 9.75 | |
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 FIDE Congress April 2013 | London | ENG | 2013-04-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1953 | 1917 | 1.50 | 3 | 0.15 | 15 | 2.25 | |
| | Jones, Steven | | | 2025 | ENG | 0.50 | 1 | 0.15 | 15 | 2.25 | | | Lalic, Peter | | | 2130 | ENG | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Rogal, Chris | | | 1705 | POL | 1.00 | 1 | 0.23 | 15 | 3.45 | |
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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