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Individual Calculations January 2010 |
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| Castro, Jairo Antonio Total change: -30.60 | |   |
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| World Youth Chess Championship-u12 | Antalya | TUR | 2009-11-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1820 | 1993 | 4.00 | 8 | -1.62 | 15 | -24.30 | |
|  Vural, Murathan | | | 1657 | TUR | 1.00 | 1 | 0.12 | 15 | 1.80 | |  Suleymanli, Ramazan Yunus Oglu | | | 1745 | AZE | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Chiari, Arthur Gontijo | f | | 1895 | BRA | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Steinberg, Nitzan | | | 2165 | ISR | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Wagdy, Andro | f | | 1895 | EGY | 0.00 | 1 | -0.63 | 15 | -9.45 | | | Lekic, Lazar | | | 1780 | MNE | 0.00 | 1 | -0.77 | 15 | -11.55 | | | Balu, Henish | | | 1593 * | POR | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Terzi, Alexei | | | 1831 | BLR | 0.00 | 1 | -0.71 | 15 | -10.65 | | | * 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) | | | | IRT Open Internacional Navideno Ciudad de Bogota | Bogota Colombia | COL | 2009-12-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2249 | 1993 | 0.00 | 1 | -0.19 | 15 | -2.85 | |
| | Becerra, Juan David | | | 2249 | COL | 0.00 | 1 | -0.19 | 15 | -2.85 | |
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) | | | | IRT Camp Nacional Sub14 Absoluto | Medellin (Colombia) | COL | 2009-12-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1947 | 1993 | 2.00 | 4 | -0.23 | 15 | -3.45 | |
| | Villamil, Nahum Jose | | | 1767 | COL | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Acevedo, Johan Sebastian | | | 2157 | COL | 0.50 | 1 | 0.22 | 15 | 3.30 | | | Acevedo, Julian Steven | | | 1808 | COL | 0.50 | 1 | -0.24 | 15 | -3.60 | | | Camargo, Santiago | | | 2054 | COL | 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) | | |
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