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Individual Calculations June 2023 |
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| Arkell, Keith C Total change: -2.60 | |   |
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| 2022/23 4NCL Division 1 Rounds 9-11 | Milton Keynes | ENG | 2023-04-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2459 | 2392 | 0.50 | 3 | -0.74 | 10 | -7.40 | |
|  Grieve, Harry | m | | 2439 | ENG | 0.00 | 1 | -0.43 | 10 | -4.30 | |  Christiansen, Johan-Sebastian | g | | 2579 | NOR | 0.50 | 1 | 0.24 | 10 | 2.40 | | | Reimanis, Ritvars | m | | 2359 | LAT | 0.00 | 1 | -0.55 | 10 | -5.50 | |
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) | | | | English Seniors Championships 2023 - Over 50 | Leamington Spa | ENG | 2023-05-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2235 | 2390 | 4.50 | 6 | 0.39 | 10 | 3.90 | |
| | Josse, Mark | c | | 2160 | ENG | 0.50 | 1 | -0.29 | 10 | -2.90 | | | Baer, Bruce L | | | 1990 * | ENG | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Bradbury, Neil H | m | | 2215 | ENG | 1.00 | 1 | 0.27 | 10 | 2.70 | | | Davies, Nigel R | g | | 2379 | ENG | 1.00 | 1 | 0.48 | 10 | 4.80 | | | Hebden, Mark L | g | | 2434 | ENG | 0.50 | 1 | 0.06 | 10 | 0.60 | | | Lewis, Andrew P | f | | 2230 | ENG | 0.50 | 1 | -0.21 | 10 | -2.10 | | | * 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) | | | | 32nd Frome Chess Congress | Frome | ENG | 2023-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2049 | 2390 | 4.50 | 5 | 0.09 | 10 | 0.90 | |
| | Moyse, Nigel J | | | 1990 * | WLS | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Kett, Timothy J | f | | 2071 | WLS | 1.00 | 1 | 0.13 | 10 | 1.30 | | | Chan, Sheng Liang Bernard | | | 2041 | MAS | 0.50 | 1 | -0.39 | 10 | -3.90 | | | Khoury, Theo | | | 2014 | ENG | 1.00 | 1 | 0.09 | 10 | 0.90 | | | Ogunshola, Olugbemiga (ben) | | | 2127 | NGR | 1.00 | 1 | 0.18 | 10 | 1.80 | | | * 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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