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Individual Calculations March 2011 |
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| Koutsidis, Achilleas Total change: 14.10 | |   |
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| 2010 Attica Team Championship Under 12 | Attica | GRE | 2010-09-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1615 | 1476 | 2.50 | 6 | 0.60 | 15 | 9.00 | |
|  Alexakis, Georgios | | | 1559 | GRE | 1.00 | 1 | 0.61 | 15 | 9.15 | |  Ladas, Dimitrios | | | 1687 | GRE | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Kalogridakis, Theodoros | | | 1587 | GRE | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Tiniakos, Ioannis | | | 1568 | GRE | 1.00 | 1 | 0.63 | 15 | 9.45 | | | Papadopoulos, Asterios | | | 1601 | GRE | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Ladas, Dimitrios | | | 1687 | GRE | 0.50 | 1 | 0.27 | 15 | 4.05 | |
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) | | | | Attica Individual Youth Ch. 2011 - Boys U12 | Athens | GRE | 2010-12-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1513 | 1470 | 0.50 | 2 | -0.38 | 15 | -5.70 | |
| | Tsatsoulis, Periklis | | | 1505 | GRE | 0.00 | 1 | -0.45 | 15 | -6.75 | | | Tsiotas, Nikolaos | | | 1520 | GRE | 0.50 | 1 | 0.07 | 15 | 1.05 | |
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) | | | | 1st Fischer memorial - SO Ambelokipon | Ambelokipi - Athens | GRE | 2011-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1545 | 1481 | 2.50 | 4 | 0.72 | 15 | 10.80 | |
| | Livanopoulou, Athina | | | 1243 | GRE | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Divaris, Dionisis | | | 1881 * | GRE | 0.50 | 1 | 0.42 | 15 | 6.30 | | | Florou, Venetia | | | 1330 | GRE | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Mitsakos, Achilleas | | | 1724 | GRE | 0.00 | 1 | -0.20 | 15 | -3.00 | | | * 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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