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Individual Calculations January 2012 |
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| Petrakis, Stylianos Total change: -37.35 | |   |
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| Youth Teams Championship of Crete 2011 | Crete island | GRE | 2011-10-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1527 | 1597 | 0.50 | 4 | -1.89 | 15 | -28.35 | |
|  Fidrilakis, Stavros | | | 1434 | GRE | 0.50 | 1 | -0.22 | 15 | -3.30 | | | Pissadakis, Dimitrios | | | 1475 | GRE | 0.00 | 1 | -0.67 | 15 | -10.05 | | | Anagnostakis, Charalampos | | | 1541 | GRE | 0.00 | 1 | -0.58 | 15 | -8.70 | | | Kadianis, Georgios | | | 1658 | GRE | 0.00 | 1 | -0.42 | 15 | -6.30 | |
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 |
| 1584 | 1597 | 1.50 | 4 | -0.60 | 15 | -9.00 | |
| | Papadopoulos, Alexandros | | | 1384 | GRE | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Doudoulakakis, Athanasios | | | 1447 | GRE | 0.00 | 1 | -0.70 | 15 | -10.50 | | | Apostolakakis, Konstantinos | | | 1605 | GRE | 0.50 | 1 | 0.01 | 15 | 0.15 | |  Ioannidis, Evgenios | f | | 1901 | GRE | 0.00 | 1 | -0.14 | 15 | -2.10 | |
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) | | |
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