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Individual Calculations July 2009 |
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| Psaltis, Aristidis Total change: -16.00 | |   |
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| 3o OPEN IOAKIMIDIS CHESS TOURNAMENT | THESSALONIKI | GRE | 2009-02-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1902 | 1763 | 0.00 | 3 | -0.94 | 25 | -23.50 | |
|  Kesidis, Odyseas | | | 1958 | GRE | 0.00 | 1 | -0.25 | 25 | -6.25 | |  Sideris, Giorgos | | | 1893 | GRE | 0.00 | 1 | -0.32 | 25 | -8.00 | | | Bahar-Mosse, Iakov | | | 1855 | GRE | 0.00 | 1 | -0.37 | 25 | -9.25 | |
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) | | | NOTE: K factor changed | | TERRITORIAL CLUB'S CUP ESSTH-HALK | THESSALONIKI | GRE | 2009-02-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1602 | 1763 | 1.00 | 1 | 0.29 | 15 | 4.35 | |
| | Maronidis, Anastasios | | | 1602 | GRE | 1.00 | 1 | 0.29 | 15 | 4.35 | |
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) | | | NOTE: K factor changed | | TER. CLUB'S CHAMP. B' CAT. THESS-HALK 2009 | THESSALONIKI | GRE | 2009-02-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1800 | 1763 | 2.50 | 3 | 1.14 | 15 | 17.10 | |
| | Konstantinidis, Mihalis | | | 1972 | GRE | 1.00 | 1 | 0.77 | 15 | 11.55 | | | Babos, Vasilios | | | 1801 | GRE | 0.50 | 1 | 0.05 | 15 | 0.75 | | | Lekatis, Ioannis | | | 1628 | GRE | 1.00 | 1 | 0.32 | 15 | 4.80 | |
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) | | | NOTE: K factor changed | | 5th Spring Open Kalamaria - In memory of G.Ioakeimidis | Thessaloniki | GRE | 2009-04-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1877 | 1786 | 0.50 | 3 | -0.67 | 15 | -10.05 | |
| | Kiratzopoulos, Efthimios | | | 2117 | GRE | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Nazarian, David | | | 2014 | GRE | 0.50 | 1 | 0.29 | 15 | 4.35 | | | Ballas, Athanasios-Panagiotis | | | 1500 | GRE | 0.00 | 1 | -0.84 | 15 | -12.60 | |
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) | | | NOTE: K factor changed | | WORLD AMATEUR CHAMPIONSHIP 2009 | Thessaloniki | GRE | 2009-04-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1969 | 1786 | 0.00 | 1 | -0.26 | 15 | -3.90 | |
| | Jain Singhai, Niklesh N | | | 1969 | IND | 0.00 | 1 | -0.26 | 15 | -3.90 | |
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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