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Individual Calculations September 2011 |
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| Gerzhoy, Leonid Total change: 19.60 | |   |
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| 8th Annual Philadelphia International | Philadelphia, Pennsylvania | USA | 2011-06-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2339 | 2496 | 8.00 | 9 | 1.76 | 10 | 17.60 | |
|  Katz, Benjamin | | | 2104 | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | |  Ardaman, Miles F | f | | 2301 | USA | 1.00 | 1 | 0.25 | 10 | 2.50 | | | Gorman, Dov | f | | 2323 | USA | 1.00 | 1 | 0.27 | 10 | 2.70 | | | Lenderman, Aleksandr | g | | 2548 | USA | 0.50 | 1 | 0.07 | 10 | 0.70 | | | Romanenko, Vladimir | m | | 2467 | BLR | 1.00 | 1 | 0.46 | 10 | 4.60 | | | Garcia, Gildardo J | g | | 2367 | COL | 1.00 | 1 | 0.33 | 10 | 3.30 | | | Kojima, Shinya | f | | 2328 | JPN | 1.00 | 1 | 0.28 | 10 | 2.80 | | | Ly, Moulthun | f | | 2375 | AUS | 0.50 | 1 | -0.16 | 10 | -1.60 | | | Perez, Robert M | | | 2239 | USA | 1.00 | 1 | 0.18 | 10 | 1.80 | |
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) | | | | 39th Annual World Open - Open Section | Philadelphia, Pennsylvania | USA | 2011-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2483 | 2496 | 5.00 | 9 | 0.40 | 10 | 4.00 | |
| | Calugar, Arthur | | | 2210 | CAN | 1.00 | 1 | 0.16 | 10 | 1.60 | | | Golod, Vitali | g | | 2592 | ISR | 1.00 | 1 | 0.63 | 10 | 6.30 | | | Harikrishna, P | g | | 2666 | IND | 0.50 | 1 | 0.22 | 10 | 2.20 | | | Mikhalevski, Victor | g | | 2577 | ISR | 0.50 | 1 | 0.11 | 10 | 1.10 | | | Gareyev, Timur | g | | 2610 | UZB | 0.50 | 1 | 0.16 | 10 | 1.60 | | | Kacheishvili, Giorgi | g | | 2599 | GEO | 0.00 | 1 | -0.36 | 10 | -3.60 | | | Holt, Conrad | m | | 2417 | USA | 0.00 | 1 | -0.61 | 10 | -6.10 | | | Shen, Victor C | f | | 2281 | USA | 1.00 | 1 | 0.23 | 10 | 2.30 | | | Lee, Michael | f | | 2395 | USA | 0.50 | 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) | | | | 48th Canadian Open Chess Championship 2011 | Toronto, Ontario | CAN | 2011-07-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2360 | 2483 | 6.50 | 9 | 0.68 | 10 | 6.80 | |
| | Tot, Nandor | | | 2083 * | CAN | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Dougherty, Michael | f | | 2217 | CAN | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Krnan, Tomas | m | | 2390 | CAN | 1.00 | 1 | 0.37 | 10 | 3.70 | | | Samsonkin, Artiom | m | | 2378 | CAN | 0.50 | 1 | -0.14 | 10 | -1.40 | | | Cummings, David | m | | 2350 | CAN | 1.00 | 1 | 0.32 | 10 | 3.20 | | | Arencibia, Walter | g | | 2476 | CUB | 0.00 | 1 | -0.51 | 10 | -5.10 | | | Perez Rodriguez, Luis Manuel | g | | 2467 | CUB | 0.50 | 1 | -0.02 | 10 | -0.20 | | | Sapozhnikov, Roman | f | | 2295 | CAN | 1.00 | 1 | 0.26 | 10 | 2.60 | | | Golod, Vitali | g | | 2582 | ISR | 0.50 | 1 | 0.14 | 10 | 1.40 | | | * 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) | | | | 2011 Quebec Invitational | Montreal, Quebec | CAN | 2011-07-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2405 | 2483 | 4.50 | 9 | -0.88 | 10 | -8.80 | |
| | Martchenko, Alexander | | | 2227 | CAN | 0.50 | 1 | -0.31 | 10 | -3.10 | | | Meszaros, Michal | m | | 2418 | SVK | 1.00 | 1 | 0.41 | 10 | 4.10 | | | Kovalyov, Anton | g | | 2612 | ARG | 0.50 | 1 | 0.17 | 10 | 1.70 | | | Rozentalis, Eduardas | g | | 2571 | LTU | 0.00 | 1 | -0.38 | 10 | -3.80 | | | Leveille, Francois | f | | 2290 | CAN | 1.00 | 1 | 0.25 | 10 | 2.50 | | | Cheng, Bindi | f | | 2385 | CAN | 0.50 | 1 | -0.13 | 10 | -1.30 | | | Kleinman, Michael | | | 2221 | CAN | 0.50 | 1 | -0.32 | 10 | -3.20 | | | Kleiman, Jake | m | | 2375 | USA | 0.50 | 1 | -0.15 | 10 | -1.50 | | | Bojkov, Dejan | g | | 2544 | BUL | 0.00 | 1 | -0.42 | 10 | -4.20 | |
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) | | |
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