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Individual Calculations January 2012 |
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| Grafakou, Sotiria-Aphrodite Total change: -6.15 | |   |
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| ESSNA under 16 team championship 2011 | Attica | GRE | 2011-11-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1418 | 1386 | 1.00 | 1 | 0.54 | 15 | 8.10 | |
|  Lymberopoulos-Bountalis, Filipp | | | 1418 | GRE | 1.00 | 1 | 0.54 | 15 | 8.10 | |
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) | | | | ESSNA under 12 team championship 2011 | Attica | GRE | 2011-11-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1527 | 1386 | 0.50 | 3 | -0.44 | 15 | -6.60 | |
| | Tsakalidis, Efstratios | | | 1531 | GRE | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Laspas, Panagiotis | | | 1573 | GRE | 0.00 | 1 | -0.26 | 15 | -3.90 | |  Beliotis, Georgios | | | 1478 | GRE | 0.00 | 1 | -0.37 | 15 | -5.55 | |
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) | | | | 4th Greek Youth Team Championship 2011 - Finals | Vrahati, Korinthos | GRE | 2011-12-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1537 | 1386 | 0.50 | 3 | -0.51 | 15 | -7.65 | |
| | Papakonstantinou, Georgios | | | 1379 | GRE | 0.00 | 1 | -0.51 | 15 | -7.65 | | | Ioannidis, Evgenios | f | | 1786 * | GRE | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Doudoulakakis, Athanasios | | | 1447 | GRE | 0.50 | 1 | 0.08 | 15 | 1.20 | | | * 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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