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Individual Calculations August 2017 |
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| Wells, Peter K Total change: -1.00 | |   |
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| 14th South Wales International Open | Cardiff | WLS | 2017-07-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2241 | 2434 | 7.00 | 10 | -0.10 | 10 | -1.00 | |
|  Whitehead, Mark A | | | 2034 * | ENG | 1.00 | 1 | 0.08 | 10 | 0.80 | |  Menadue, Jeremy F S | | | 2046 | ENG | 1.00 | 1 | 0.09 | 10 | 0.90 | | | Ledger, Dave J | f | | 2218 | ENG | 0.50 | 1 | -0.28 | 10 | -2.80 | | | Jones, Richard S. | m | | 2398 | WLS | 0.50 | 1 | -0.05 | 10 | -0.50 | | | Freeland, Alex | | | 2034 * | WLS | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Arkell, Keith C | g | | 2424 | ENG | 1.00 | 1 | 0.49 | 10 | 4.90 | | | Petrov, Marian | g | | 2466 | BUL | 0.50 | 1 | 0.04 | 10 | 0.40 | | | Chatalbashev, Boris | g | | 2552 | BUL | 0.00 | 1 | -0.34 | 10 | -3.40 | | | Van Kemenade, Rudy | | | 2034 * | WLS | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Kett, Tim | | | 2208 | WLS | 0.50 | 1 | -0.29 | 10 | -2.90 | | | * 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) | | |
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