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Individual Calculations January 2024 |
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| Rubeck, Jonathan Total change: -25.60 | |   |
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| Southall FIDE Congress December 2023 - U1900 | Southall | ENG | 2023-12-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1710 | 1771 | 1.50 | 4 | -0.81 | 20 | -16.20 | |
|  Pride, Stephen C | | | 1512 | ENG | 1.00 | 1 | 0.18 | 20 | 3.60 | |  Wiratunga, Jenith | | | 1730 | SRI | 0.00 | 1 | -0.56 | 20 | -11.20 | | | Obi, Okwose Marc | | | 1751 | ENG | 0.50 | 1 | -0.03 | 20 | -0.60 | | | Samarakoon, Vivash Ransara | | | 1846 | SRI | 0.00 | 1 | -0.40 | 20 | -8.00 | |
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) | | | | 15th Northwick Park Five Round Congress - Major | Harrow | ENG | 2023-12-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1524 | 1771 | 3.50 | 5 | -0.47 | 20 | -9.40 | |
| | Croasdale, Mark | | | 1490 | ENG | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Pepe, Salvatore | | | 1526 | ENG | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Meadows, Pete | | | 1665 | ENG | 1.00 | 1 | 0.36 | 20 | 7.20 | | | Lam, Kai | | | 1536 | ENG | 0.50 | 1 | -0.29 | 20 | -5.80 | | | McLean, Rory | | | 1403 | ENG | 0.00 | 1 | -0.90 | 20 | -18.00 | |
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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