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Individual Calculations July 2009 |
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| Stopa, Jacek Total change: -0.10 | |   |
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| 2009 TexOhma FIDE Open | Richardson, Texas | USA | 2009-03-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2263 | 2470 | 2.50 | 3 | 0.28 | 10 | 2.80 | |
|  Malhotra, Akshay | | | 2120 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | |  Yang, Darwin | f | | 2214 | USA | 1.00 | 1 | 0.19 | 10 | 1.90 | | | Wang, Puchen | m | | 2456 | NZL | 0.50 | 1 | -0.02 | 10 | -0.20 | |
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) | | | | Final Four of College Chess | Richardson, Texas | USA | 2009-04-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2172 | 2471 | 0.50 | 1 | -0.35 | 10 | -3.50 | |
| | Aradhyula, Vaishnav | | | 2172 | USA | 0.50 | 1 | -0.35 | 10 | -3.50 | |
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) | | | | 11th Annual Foxwoods Open | Mashantucket, Connecticut | USA | 2009-04-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2363 | 2471 | 5.00 | 8 | -0.02 | 10 | -0.20 | |
| | Bady, Glenn | | | 2255 | USA | 1.00 | 1 | 0.22 | 10 | 2.20 | | | Sapozhnikov, Roman | | | 2152 | CAN | 1.00 | 1 | 0.13 | 10 | 1.30 | | | Becerra, Julio J | g | | 2609 | USA | 0.50 | 1 | 0.19 | 10 | 1.90 | | | Nakamura, Hikaru | g | | 2701 | USA | 0.00 | 1 | -0.21 | 10 | -2.10 | | | Santarius, Erik F | | | 2252 | USA | 0.00 | 1 | -0.78 | 10 | -7.80 | | | Pismennyy, Avraam | | | 2278 | RUS | 1.00 | 1 | 0.25 | 10 | 2.50 | | | Kelley, Dereque D | | | 2149 | USA | 1.00 | 1 | 0.13 | 10 | 1.30 | | | Charbonneau, Pascal | g | | 2505 | CAN | 0.50 | 1 | 0.05 | 10 | 0.50 | |
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 |
| 2296 | 2471 | 6.00 | 8 | 0.36 | 10 | 3.60 | |
| | Montanez Nazario, Roberto | | | 2121 | PUR | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Santana Alvarado, Miguel | | | 2168 | PUR | 1.00 | 1 | 0.14 | 10 | 1.40 | | | Montalvo Rosario, Alejandro | m | | 2251 | PUR | 1.00 | 1 | 0.22 | 10 | 2.20 | | | Zapata Ramirez, Alonso | g | | 2514 | COL | 0.50 | 1 | 0.06 | 10 | 0.60 | | | Matamoros Franco, Carlos S | g | | 2535 | ECU | 0.50 | 1 | 0.09 | 10 | 0.90 | | | Almedina Ortiz, Edgardo J | | | 2121 | PUR | 0.00 | 1 | -0.89 | 10 | -8.90 | | | Fierro Baquero, Martha L | m | wg | 2411 | ECU | 1.00 | 1 | 0.42 | 10 | 4.20 | | | Santa Torres, Juan | m | | 2245 | PUR | 1.00 | 1 | 0.21 | 10 | 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) | | | | 3.Wunsiedel Elo-Open | Wunsiedel | GER | 2009-05-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2298 | 2471 | 5.50 | 7 | 0.55 | 10 | 5.50 | |
| | Kliebe, Harry | | | 2121 | GER | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Salzberg, Gregor | | | 2164 | GER | 0.50 | 1 | -0.36 | 10 | -3.60 | | | Jandke, Manfred | | | 2190 | GER | 1.00 | 1 | 0.16 | 10 | 1.60 | | | Gasthofer, Alexander | m | | 2441 | GER | 0.50 | 1 | -0.04 | 10 | -0.40 | | | Natsidis, Christoph | | | 2308 | GER | 1.00 | 1 | 0.28 | 10 | 2.80 | | | Kersten, Uwe | f | | 2280 | GER | 1.00 | 1 | 0.25 | 10 | 2.50 | | | Berelovich, Aleksandar | g | | 2581 | GER | 0.50 | 1 | 0.15 | 10 | 1.50 | |
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) | | | | 3e ENCI Limburg Open 2009 | Maastricht | NED | 2009-05-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2285 | 2471 | 3.50 | 6 | -0.83 | 10 | -8.30 | |
| | Koenig, Christian | | | 2140 | GER | 1.00 | 1 | 0.12 | 10 | 1.20 | | | Laarhoven, Thijs | | | 2227 | NED | 0.50 | 1 | -0.30 | 10 | -3.00 | | | Van Gool, Henk | | | 2125 | NED | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Broekmeulen, Jasper | f | | 2318 | NED | 0.50 | 1 | -0.20 | 10 | -2.00 | | | Arun Prasad, S. | g | | 2552 | IND | 0.50 | 1 | 0.11 | 10 | 1.10 | | | Hetey, Laszlo | m | | 2347 | GER | 0.00 | 1 | -0.67 | 10 | -6.70 | |
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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