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Individual Calculations February 2013 |
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| Kolyvas, Aris Total change: -18.45 | |   |
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| 2012 ESSNA Team championship under 12 - "Dimitris Siametis" | Attica | GRE | 2012-11-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1353 | 1425 | 3.00 | 5 | 0.02 | 15 | 0.30 | |
|  Kounouvelis, Mihail | | | 1245 | GRE | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Georgiou, Konstantinos | | | 1306 | GRE | 1.00 | 1 | 0.34 | 15 | 5.10 | | | Karousos-Theodorakis, Nikolaos | | | 1614 | GRE | 1.00 | 1 | 0.75 | 15 | 11.25 | | | Peppas, Stamatis | | | 1367 | GRE | 0.00 | 1 | -0.58 | 15 | -8.70 | |  Gkikas, Ioannis | | | 1233 | GRE | 0.00 | 1 | -0.75 | 15 | -11.25 | |
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) | | | | 2013 Individual Championship of ESSNA U14 Open | Athens | GRE | 2012-12-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1468 | 1425 | 0.50 | 4 | -1.25 | 15 | -18.75 | |
| | Stavropoulos, Konstantinos | | | 1578 | GRE | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Karathanasis, Vlasis | | | 1559 | GRE | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Sideris, Spiridon | | | 1186 | GRE | 0.50 | 1 | -0.30 | 15 | -4.50 | | | Kamitsis, Nikolaos | | | 1548 | GRE | 0.00 | 1 | -0.33 | 15 | -4.95 | |
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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