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Individual Calculations February 2023 |
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| Stoneman, Ian D Total change: -10.00 | |   |
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| Coulsdon Chess Dicky White - December | London | ENG | 2022-11-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1471 | 1355 | 1.50 | 3 | 0.35 | 20 | 7.00 | |
|  Rosenbach, Martin | | | 1752 | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Boztas, Lana | | | 1358 | ENG | 0.50 | 1 | 0.00 | 20 | 0.00 | | | Howes, David J | | | 1304 | ENG | 1.00 | 1 | 0.43 | 20 | 8.60 | |
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) | | | | Coulsdon Chess Dicky White - January | London | ENG | 2023-01-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1373 | 1318 | 0.00 | 2 | -0.85 | 20 | -17.00 | |
| | Smyth, Sandy A | | | 1316 | ENG | 0.00 | 1 | -0.50 | 20 | -10.00 | |  Bermudez, Venerando | | | 1429 | ENG | 0.00 | 1 | -0.35 | 20 | -7.00 | |
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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