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Individual Calculations January 2009 |
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| Pereira, Ruben Total change: -14.30 | |   |
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| European Youth Chess Championship 2008 - Boys U18 | Herceg Novi | MNE | 2008-09-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2229 | 2417 | 5.00 | 9 | -1.60 | 10 | -16.00 | |
|  Botta, Gabriele | | | 2158 | SUI | 1.00 | 1 | 0.18 | 10 | 1.80 | |  Panocki, Adrian | | | 2338 | POL | 0.00 | 1 | -0.61 | 10 | -6.10 | | | Dvirnyy, Daniyyl | f | | 2358 | ITA | 0.00 | 1 | -0.58 | 10 | -5.80 | | | Rahmanov, Shakhiyar | | | 2145 | AZE | 0.00 | 1 | -0.83 | 10 | -8.30 | | | Vajic, Goran | | | 2067 | BIH | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Opinca, Sorin | | | 2175 | MDA | 1.00 | 1 | 0.20 | 10 | 2.00 | | | Nemes, Silviu-Virgil | | | 2273 | ROU | 0.50 | 1 | -0.19 | 10 | -1.90 | | | Sarenac, David | | | 2222 | SRB | 1.00 | 1 | 0.25 | 10 | 2.50 | | | Blomqvist, Erik | | | 2322 | SWE | 0.50 | 1 | -0.13 | 10 | -1.30 | |
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) | | | | World Youth Chess Championships 2008 - Open 18 | Vung Tau | VIE | 2008-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2258 | 2436 | 7.00 | 11 | -0.92 | 10 | -9.20 | |
| | Mitrovic, Boris | | | 2146 | SLO | 0.00 | 1 | -0.84 | 10 | -8.40 | | | Ertan, Can | | | 2135 | TUR | 1.00 | 1 | 0.15 | 10 | 1.50 | | | Ye, Ling Feng | | | 2188 | CAN | 1.00 | 1 | 0.19 | 10 | 1.90 | | | Posedaru, Bogdan | | | 2212 | ROU | 0.50 | 1 | -0.28 | 10 | -2.80 | | | Schiendorfer, Emanuel | | | 2238 | SUI | 0.50 | 1 | -0.26 | 10 | -2.60 | | | Saravana, Krishnan P | | | 2262 | IND | 0.50 | 1 | -0.23 | 10 | -2.30 | | | Ochoa, Carl Victor | | | 2272 | PHI | 0.50 | 1 | -0.22 | 10 | -2.20 | | | Rajapakse, R M C M | | | 2132 | SRI | 1.00 | 1 | 0.14 | 10 | 1.40 | | | Shankland, Samuel, L | f | | 2436 | USA | 0.50 | 1 | 0.00 | 10 | 0.00 | | | Ashwin, Jayaram | m | | 2437 | IND | 0.50 | 1 | 0.00 | 10 | 0.00 | | | Rasulov, Vugar | f | | 2384 | AZE | 1.00 | 1 | 0.43 | 10 | 4.30 | |
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) | | | | Olympiad Dresden Open | Dresden | GER | 2008-11-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2338 | 2436 | 6.00 | 8 | 1.09 | 10 | 10.90 | |
| | Spice, Alan | | | 2173 | WLS | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Chung, Sunghoon | | | 2086 | KOR | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Arutinian, David | g | | 2584 | GEO | 0.00 | 1 | -0.30 | 10 | -3.00 | | | Sarakauskas, Gediminas | m | | 2429 | LTU | 1.00 | 1 | 0.49 | 10 | 4.90 | | | Schellmann, Frank | | | 2144 | GER | 1.00 | 1 | 0.15 | 10 | 1.50 | | | Baumegger, Siegfried | m | | 2445 | AUT | 0.50 | 1 | 0.01 | 10 | 0.10 | | | Hakki, Imad | m | | 2422 | SYR | 1.00 | 1 | 0.48 | 10 | 4.80 | | | Huschenbeth, Niclas | m | | 2417 | GER | 0.50 | 1 | -0.03 | 10 | -0.30 | |
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) | | |
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