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Individual Calculations September 2017 |
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| Tombolis, Christopher Total change: 57.60 | |   |
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| 104th British Championships Major Open | Llandudno | ENG | 2017-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2001 | 1807 | 2.00 | 4 | 0.99 | 40 | 39.60 | |
|  Jameson, David | | | 2099 | WLS | 1.00 | 1 | 0.85 | 40 | 34.00 | |  Rice, Chris B | | | 2009 | ENG | 0.50 | 1 | 0.26 | 40 | 10.40 | | | Hubbard, Michael | | | 1922 | ENG | 0.50 | 1 | 0.16 | 40 | 6.40 | | | Edwards, Simon R | | | 1973 | ENG | 0.00 | 1 | -0.28 | 40 | -11.20 | |
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) | | | | 104th British Championships Under 12 | Llandudno | ENG | 2017-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1622 | 1807 | 5.00 | 5 | 1.43 | 40 | 57.20 | |
| | Akeya-Price, Robert A | | | 1746 | ENG | 1.00 | 1 | 0.42 | 40 | 16.80 | | | Hussain, Adam | | | 1659 | ENG | 1.00 | 1 | 0.30 | 40 | 12.00 | | | Saidmurodov, Shahjahon | | | 1505 | ENG | 1.00 | 1 | 0.15 | 40 | 6.00 | | | Pramod Paleri, Adithya | | | 1792 | ENG | 1.00 | 1 | 0.48 | 40 | 19.20 | | | Volovich, Julia | | | 1407 * | ENG | 1.00 | 1 | 0.08 | 40 | 3.20 | | | * 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) | | | | 7th Gibraltar Junior International Junior Chess Festival Under 12 | Gibraltar | ENG | 2017-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1503 | 1807 | 4.00 | 6 | -0.98 | 40 | -39.20 | |
| | Bekkari, Amine | | | 1407 * | FRA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Portero Bravo, Aitana | | | 1446 | ESP | 0.00 | 1 | -0.90 | 40 | -36.00 | | | Barranco Lopez, Alba | | | 1407 * | ESP | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Tadevosyan, Aspet | | | 1805 | ESP | 0.00 | 1 | -0.50 | 40 | -20.00 | | | Yeste Piqueras, Marcos | | | 1407 * | ESP | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Martins, Jose Carlos Caetano | | | 1544 | POR | 1.00 | 1 | 0.18 | 40 | 7.20 | | | * 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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