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Individual Calculations September 2009 |
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| Sanders, Isaac B Total change: -63.25 | |   |
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| NCJS Young Masters 2009: Young Masters | Street, Somerset | ENG | 2009-07-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1755 | 1855 | 1.50 | 3 | -0.40 | 25 | -10.00 | |
|  Periasamymanjula, Manibharathi | | | 1742 | ENG | 0.00 | 1 | -0.65 | 25 | -16.25 | | | Johnson, Roland E S | | | 1689 | ENG | 1.00 | 1 | 0.28 | 25 | 7.00 | |  Davda, Rahil P | | | 1834 | ENG | 0.50 | 1 | -0.03 | 25 | -0.75 | |
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) | | | | British U16 Championships | Torquay | ENG | 2009-07-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2017 | 1855 | 1.00 | 3 | 0.14 | 25 | 3.50 | |
| | Iyengar, Ilya | | | 1963 | ENG | 0.50 | 1 | 0.15 | 25 | 3.75 | | | Brown, Martin | | | 2074 | ENG | 0.00 | 1 | -0.22 | 25 | -5.50 | | | Tunstall, George S | | | 2013 | ENG | 0.50 | 1 | 0.21 | 25 | 5.25 | |
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 EU Youth Championship -12 | Mureck | AUT | 2009-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1640 | 1855 | 1.50 | 5 | -2.27 | 25 | -56.75 | |
| | Mateus, Andre | | | 1531 | POR | 0.50 | 1 | -0.37 | 25 | -9.25 | | | Svitojus, Zygimantas | | | 1684 | LTU | 0.50 | 1 | -0.23 | 25 | -5.75 | | | Cosman, Andreea-Marioara | | | 1455 * | ROU | 0.00 | 1 | -0.92 | 25 | -23.00 | | | Markoja, Boris | | | 1774 | SLO | 0.50 | 1 | -0.11 | 25 | -2.75 | | | Petr, Jan | | | 1754 | CZE | 0.00 | 1 | -0.64 | 25 | -16.00 | | | * 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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