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Individual Calculations July 2009 |
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| Zapata, Alonso Total change: 8.60 | |   |
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| LV Campeonato Nacional Abierto de Ajedrez (1ra. Fuerza) | Toluca, Edo. de Mexico | MEX | 2009-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2376 | 2514 | 5.50 | 8 | 0.21 | 10 | 2.10 | |
|  Cortes Rodriguez, Marco | | | 2164 | MEX | 0.50 | 1 | -0.39 | 10 | -3.90 | | | Lopez De La Torre, Armando | | | 2164 | MEX | 1.00 | 1 | 0.11 | 10 | 1.10 | |  Magana Echeverria, Francis | m | | 2274 | MEX | 1.00 | 1 | 0.20 | 10 | 2.00 | | | Escobedo Tinajero, Alberto | m | | 2353 | MEX | 1.00 | 1 | 0.29 | 10 | 2.90 | | | Mitkov, Nikola | g | | 2530 | MKD | 0.50 | 1 | 0.02 | 10 | 0.20 | | | Lares Flores, Manuel De Je | f | | 2292 | MEX | 1.00 | 1 | 0.22 | 10 | 2.20 | | | Onischuk, Alexander | g | | 2684 | USA | 0.50 | 1 | 0.22 | 10 | 2.20 | | | Cordova, Emilio | g | | 2543 | PER | 0.00 | 1 | -0.46 | 10 | -4.60 | |
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) | | | | II La Vega Open Internacional 2009 | La Vega | DOM | 2009-04-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2291 | 2514 | 6.50 | 9 | -0.29 | 10 | -2.90 | |
| | Duran, Joel Aneudi | | | 2164 | DOM | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Ramirez, Carlos | | | 2189 | PUR | 1.00 | 1 | 0.13 | 10 | 1.30 | | | Flaquer, Luis | | | 2261 | DOM | 0.00 | 1 | -0.81 | 10 | -8.10 | | | Vazquez Reyes, Raul | | | 2164 | PUR | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Munoz, Lisandro | m | | 2328 | DOM | 0.00 | 1 | -0.74 | 10 | -7.40 | | | Lugo, Maximo | | | 2164 | DOM | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Subervi, Jonathan | | | 2213 | DOM | 1.00 | 1 | 0.15 | 10 | 1.50 | | | Mitkov, Nikola | g | | 2530 | MKD | 1.00 | 1 | 0.52 | 10 | 5.20 | | | Becerra Rivero, Julio | g | | 2609 | USA | 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) | | | | Heroes Day Masters Cup | Bridgetown | BAR | 2009-04-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2373 | 2514 | 7.00 | 9 | 0.93 | 10 | 9.30 | |
| | Elliott, Warren | f | | 2265 | JAM | 1.00 | 1 | 0.19 | 10 | 1.90 | | | Shabalov, Alexander | g | | 2569 | USA | 1.00 | 1 | 0.58 | 10 | 5.80 | | | Neubauer, Martin | m | | 2414 | AUT | 0.50 | 1 | -0.14 | 10 | -1.40 | | | Paikidze, Nazi | | wm | 2310 | GEO | 1.00 | 1 | 0.24 | 10 | 2.40 | | | Denny, Kevin | m | | 2354 | BAR | 1.00 | 1 | 0.29 | 10 | 2.90 | | | Buhmann, Rainer | g | | 2582 | GER | 0.00 | 1 | -0.41 | 10 | -4.10 | | | Uribe, Mauricio | m | | 2416 | COL | 0.50 | 1 | -0.13 | 10 | -1.30 | | | Pitterson, Jomo | f | | 2242 | JAM | 1.00 | 1 | 0.17 | 10 | 1.70 | | | Warner, Delisle | f | | 2209 | BAR | 1.00 | 1 | 0.14 | 10 | 1.40 | |
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) | | | | Caguas International | Caguas | PUR | 2009-05-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2301 | 2514 | 6.00 | 8 | 0.01 | 10 | 0.10 | |
| | Pressman, Leif | | | 2164 | USA | 0.50 | 1 | -0.39 | 10 | -3.90 | | | Montanez Nazario, Roberto | | | 2164 | PUR | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Fierro Baquero, Martha L | m | wg | 2411 | ECU | 1.00 | 1 | 0.36 | 10 | 3.60 | | | Stopa, Jacek | m | | 2471 | POL | 0.50 | 1 | -0.06 | 10 | -0.60 | | | Santa Torres, Juan | m | | 2245 | PUR | 1.00 | 1 | 0.17 | 10 | 1.70 | | | Montalvo Rosario, Alejandro | m | | 2251 | PUR | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Almedina Ortiz, Edgardo J | | | 2164 | PUR | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Matamoros Franco, Carlos S | g | | 2535 | ECU | 0.00 | 1 | -0.47 | 10 | -4.70 | |
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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